[Darwin] Fix MTRDeviceControllerStartupParams nocSigner empty issue

[robinmo]

Fix #26240

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[github-actions]

PR #26246: Size comparison from bcf1b80 to 3d4a001

Increases (1 build for bl602)

platform	target	config	section	bcf1b80	3d4a001	change	% change
bl602	lighting-app	bl602	.text	1031746	1031748	2	0.0

Decreases (2 builds for bl702, nrfconnect)

platform	target	config	section	bcf1b80	3d4a001	change	% change
bl702	lighting-app	bl702	(read/write)	1179783	1179767	-16	-0.0
			.debug_info	40756786	40756785	-1	-0.0
			.text	959698	959696	-2	-0.0
nrfconnect	all-clusters-app	nrf7002dk_nrf5340_cpuapp	text	775788	775784	-4	-0.0

Full report (11 builds for bl602, bl702, cc32xx, mbed, nrfconnect, qpg)

platform	target	config	section	bcf1b80	3d4a001	change	% change
bl602	lighting-app	bl602	(read/write)	1350630	1350630	0	0.0
			.bss	87862	87862	0	0.0
			.data	9648	9648	0	0.0
			.text	1031746	1031748	2	0.0
		bl602+rpc	(read/write)	1396618	1396618	0	0.0
			.bss	95910	95910	0	0.0
			.data	10040	10040	0	0.0
			.text	1062836	1062836	0	0.0
bl702	lighting-app	bl702		0	0	0	0.0
			(read only)	3358	3358	0	0.0
			(read/write)	1179783	1179767	-16	-0.0
			.bleromro	6342	6342	0	0.0
			.bleromrw	124	124	0	0.0
			.boot2	328	328	0	0.0
			.bss	67577	67577	0	0.0
			.bss_psram	24368	24368	0	0.0
			.comment	48	48	0	0.0
			.data	3952	3952	0	0.0
			.debug_abbrev	1549447	1549447	0	0.0
			.debug_aranges	134696	134696	0	0.0
			.debug_frame	495276	495276	0	0.0
			.debug_info	40756786	40756785	-1	-0.0
			.debug_line	5310222	5310222	0	0.0
			.debug_loc	3445042	3445042	0	0.0
			.debug_ranges	376512	376512	0	0.0
			.debug_str	3596654	3596654	0	0.0
			.hbn	536	536	0	0.0
			.hbn_noinit	260	260	0	0.0
			.init	342	342	0	0.0
			.init_array	140	140	0	0.0
			.psram	0	0	0	0.0
			.riscv.attributes	47	47	0	0.0
			.rodata	106096	106096	0	0.0
			.rsvd	4	4	0	0.0
			.sha_ocram	72	72	0	0.0
			.shstrtab	304	304	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	573776	573776	0	0.0
			.symtab	174304	174304	0	0.0
			.tcm_data	28	28	0	0.0
			.tcmcode	3358	3358	0	0.0
			.text	959698	959696	-2	-0.0
		bl702+rpc		0	0	0	0.0
			(read only)	3358	3358	0	0.0
			(read/write)	1267867	1267867	0	0.0
			.bleromro	6342	6342	0	0.0
			.bleromrw	124	124	0	0.0
			.boot2	328	328	0	0.0
			.bss	75609	75609	0	0.0
			.bss_psram	24768	24768	0	0.0
			.comment	48	48	0	0.0
			.data	4504	4504	0	0.0
			.debug_abbrev	1700147	1700147	0	0.0
			.debug_aranges	142920	142920	0	0.0
			.debug_frame	523156	523156	0	0.0
			.debug_info	45249850	45249850	0	0.0
			.debug_line	5717514	5717514	0	0.0
			.debug_loc	3645630	3645630	0	0.0
			.debug_ranges	401504	401504	0	0.0
			.debug_str	4021065	4021065	0	0.0
			.hbn	536	536	0	0.0
			.hbn_noinit	260	260	0	0.0
			.init	342	342	0	0.0
			.init_array	156	156	0	0.0
			.psram	0	0	0	0.0
			.riscv.attributes	47	47	0	0.0
			.rodata	119952	119952	0	0.0
			.rsvd	4	4	0	0.0
			.sha_ocram	72	72	0	0.0
			.shstrtab	304	304	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	634778	634778	0	0.0
			.symtab	192704	192704	0	0.0
			.tcm_data	28	28	0	0.0
			.tcmcode	3358	3358	0	0.0
			.text	1032622	1032622	0	0.0
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	601114	601114	0	0.0
			(read/write)	204132	204132	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197544	197544	0	0.0
			.comment	206	206	0	0.0
			.data	1468	1468	0	0.0
			.debug_abbrev	956756	956756	0	0.0
			.debug_aranges	103416	103416	0	0.0
			.debug_frame	349704	349704	0	0.0
			.debug_info	19489249	19489249	0	0.0
			.debug_line	2678035	2678035	0	0.0
			.debug_line_str	513	513	0	0.0
			.debug_loc	33340	33340	0	0.0
			.debug_loclists	1501882	1501882	0	0.0
			.debug_ranges	4984	4984	0	0.0
			.debug_rnglists	96008	96008	0	0.0
			.debug_str	3024877	3024877	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	104170	104170	0	0.0
			.shstrtab	265	265	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	477531	477531	0	0.0
			.symtab	285936	285936	0	0.0
			.text	494824	494824	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2492536	2492536	0	0.0
			.bss	216272	216272	0	0.0
			.data	5144	5144	0	0.0
			.text	1455220	1455220	0	0.0
nrfconnect	all-clusters-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1173892	1173892	0	0.0
			bss	155557	155557	0	0.0
			rodata	132740	132740	0	0.0
			text	804836	804836	0	0.0
	all-clusters-minimal-app	nrf52840dk_nrf52840	(read only)	4	4	0	0.0
			(read/write)	1119140	1119140	0	0.0
			bss	154713	154713	0	0.0
			rodata	109556	109556	0	0.0
			text	774228	774228	0	0.0
	all-clusters-app	nrf7002dk_nrf5340_cpuapp	(read only)	4	4	0	0.0
			(read/write)	1433952	1433952	0	0.0
			bss	135297	135297	0	0.0
			rodata	228784	228784	0	0.0
			text	775788	775784	-4	-0.0
qpg	lighting-app	qpg6105+debug	(read/write)	1163968	1163968	0	0.0
			.bss	99616	99616	0	0.0
			.data	856	856	0	0.0
			.text	611068	611068	0	0.0
	lock-app	qpg6105+debug	(read/write)	1133328	1133328	0	0.0
			.bss	94768	94768	0	0.0
			.data	852	852	0	0.0
			.text	580424	580424	0	0.0

[robinmo]

Create another one #26247