[Android] Support random pincode

[joonhaengHeo]

OpenCommissioning is not possible with random pinCode on Android Platform, we modified it to randomly generate pinCode if pinCode is not set.

[github-actions]

PR #25511: Size comparison from 69ec3ea to 68d6611

Decreases (1 build for cc32xx)

platform	target	config	section	69ec3ea	68d6611	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	20267068	20267066	-2	-0.0

Full report (2 builds for cc32xx, mbed)

platform	target	config	section	69ec3ea	68d6611	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	644425	644425	0	0.0
			(read/write)	203688	203688	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197088	197088	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930235	930235	0	0.0
			.debug_aranges	87336	87336	0	0.0
			.debug_frame	300028	300028	0	0.0
			.debug_info	20267068	20267066	-2	-0.0
			.debug_line	2659698	2659698	0	0.0
			.debug_loc	2802749	2802749	0	0.0
			.debug_ranges	282952	282952	0	0.0
			.debug_str	3023892	3023892	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105929	105929	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	378514	378514	0	0.0
			.symtab	256624	256624	0	0.0
			.text	536372	536372	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2467600	2467600	0	0.0
			.bss	215804	215804	0	0.0
			.data	5880	5880	0	0.0
			.text	1430244	1430244	0	0.0

[github-actions]

PR #25511: Size comparison from 3889a44 to bd5e55d

Decreases (1 build for cc32xx)

platform	target	config	section	3889a44	bd5e55d	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL	.debug_info	20267388	20267387	-1	-0.0

Full report (1 build for cc32xx)

platform	target	config	section	3889a44	bd5e55d	change	% change
cc32xx	lock	CC3235SF_LAUNCHXL		0	0	0	0.0
			(read only)	644425	644425	0	0.0
			(read/write)	203688	203688	0	0.0
			.ARM.attributes	44	44	0	0.0
			.ARM.exidx	8	8	0	0.0
			.bss	197088	197088	0	0.0
			.comment	194	194	0	0.0
			.data	1480	1480	0	0.0
			.debug_abbrev	930235	930235	0	0.0
			.debug_aranges	87344	87344	0	0.0
			.debug_frame	300044	300044	0	0.0
			.debug_info	20267388	20267387	-1	-0.0
			.debug_line	2659771	2659771	0	0.0
			.debug_loc	2802807	2802807	0	0.0
			.debug_ranges	282960	282960	0	0.0
			.debug_str	3024017	3024017	0	0.0
			.ramVecs	780	780	0	0.0
			.resetVecs	64	64	0	0.0
			.rodata	105929	105929	0	0.0
			.shstrtab	232	232	0	0.0
			.stab	204	204	0	0.0
			.stabstr	441	441	0	0.0
			.stack	2048	2048	0	0.0
			.strtab	378514	378514	0	0.0
			.symtab	256624	256624	0	0.0
			.text	536372	536372	0	0.0