[qr-code] Align QR Code format with the spec

[Damian-Nordic]

Problem

QR Code format is no longer aligned with the spec after recent changes.

Change overview

1. Replace boolean requiresCustomFlow with 2-bit field with
   the following meaning:
   0 - device automatically enters paring mode upon power-up
   1 - device needs user interaction to enter pairing mode
   2 - device uses a vendor-specific flow that should be
   retrieved from the distributed ledger.
2. Replace CH: prefix with MT:

Testing

• There are many unit tests that cover QR Code and Manual Pairing Code parsing.
  • Reviewed existing test cases and added a few more
• Additionally, tested the change manually using nRF Connect lighting-app and Android CHIP Tool
• Also, tested parsing QR Codes with optional data using Python CHIP Controller setup-payload parse-qr command.

[woody-apple]

@shana-apple ?

[github-actions]

Size increase report for "gn_qpg6100-example-build" from 575f99d

File	Section	File	VM
chip-qpg6100-lighting-example.out	.text	48	48

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

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

sections,vmsize,filesize
.debug_info,0,368
.debug_str,0,164
.debug_ranges,0,112
.debug_abbrev,0,73
.text,48,48
.shstrtab,0,2
.debug_aranges,0,-8
.debug_frame,0,-20
.debug_line,0,-42
.symtab,0,-48
[Unmapped],0,-48
.strtab,0,-74
.debug_loc,0,-195

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'

[github-actions]

Size increase report for "nrfconnect-example-build" from 575f99d

File	Section	File	VM
chip-lock.elf	text	12	12
chip-lock.elf	device_handles	4	4

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

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

sections,vmsize,filesize
.debug_info,0,388
.debug_abbrev,0,73
.debug_str,0,29
.debug_loc,0,19
text,12,12
.debug_line,0,11
device_handles,4,4
.debug_ranges,0,-16

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

sections,vmsize,filesize

[github-actions]

Size increase report for "esp32-example-build" from 575f99d

File	Section	File	VM
chip-all-clusters-app.elf	.flash.text	8	8

Full report output

BLOAT REPORT

Files found only in the build output:
    report.csv

Comparing ./master_artifact/chip-pigweed-app.elf and ./pull_artifact/chip-pigweed-app.elf:

sections,vmsize,filesize

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

sections,vmsize,filesize
.debug_loc,0,41951
.debug_info,0,576
.debug_line,0,542
.debug_str,0,106
.debug_abbrev,0,73
.flash.text,8,8
.debug_ranges,0,-152

[woody-apple]

/rebase