Enable CCM encrypt/decrypt for 0 byte plaintext

[pan-apple]

Problem

CASE resumption requires encrypt/decrypt for 0 byte sized values. The generated tag/MIC is actually used for session resumption. The current CHIPCrypto code is expecting the input buffer to be > 0 length.

Change overview

Remove the check, and update unit tests to verify 0 byte crypto operations.

Testing

Enabled checks for test vectors of 0 byte inputs in CHIPCryptoPALTest.

[github-actions]

Size increase report for "gn_qpg-example-build" from bb7e53f

File	Section	File	VM
chip-qpg6100-lighting-example.out	.text	-16	-16

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-qpg6100-lighting-example.out.map and ./pull_artifact/chip-qpg6100-lighting-example.out.map:

BLOAT EXECUTION FAILED WITH CODE 1:
bloaty: unknown file type for file './pull_artifact/chip-qpg6100-lighting-example.out.map'

Comparing ./master_artifact/chip-qpg6100-lighting-example.out and ./pull_artifact/chip-qpg6100-lighting-example.out:

sections,vmsize,filesize
[Unmapped],0,16
.debug_str,0,1
.debug_line,0,-9
.text,-16,-16

[github-actions]

Size increase report for "nrfconnect-example-build" from bb7e53f

File	Section	File	VM
chip-shell.elf	text	-16	-16
chip-lock.elf	text	-16	-16

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-shell.elf and ./pull_artifact/chip-shell.elf:

sections,vmsize,filesize
.debug_loc,0,4
.debug_line,0,-12
text,-16,-16

Comparing ./master_artifact/chip-lock.elf and ./pull_artifact/chip-lock.elf:

sections,vmsize,filesize
.debug_line,0,-8
text,-16,-16

[github-actions]

Size increase report for "esp32-example-build" from bb7e53f

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	-20	-20

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-all-clusters-app.elf and ./pull_artifact/chip-all-clusters-app.elf:

sections,vmsize,filesize
.debug_ranges,0,24
.debug_abbrev,0,20
[Unmapped],0,20
.debug_loc,0,3
.riscv.attributes,0,2
.debug_info,0,1
.flash.text,-20,-20
.debug_line,0,-46