omnigul : use MrChromebox 24.12 branch, remove unneeded 24.02.01 patches, cp Pr0 patch from 24.12, save coreboot config

Input for linuxboot#1658

Repro:
echo "bogus" | sudo tee build/x86/coreboot-mrchromebox/.canary #make sure coreboot witches to proper fork+commit+applies patch
./docker_repro.sh make BOARD=omnigul #Builds 24.12 shared crossgcc buildstack + clone + patch + builds with previous coreboot config
./docker_repro.sh make BOARD=omnigul coreboot.modify_defconfig_in_place # review defconfig: remove things deviating on default on which we are unsure
./docker_repro.sh make BOARD=omnigul coreboot.modify_and_save_oldconfig_in_place # review changes.
./docker_repro.sh make BOARD=omnigul # check if builds

Builds locally.

Todo:
- review changes of config
  - easy to do with './docker_repro.sh make BOARD=omnigul coreboot.modify_defconfig_in_place' which shows deviation from boards defaults.

Signed-off-by: Thierry Laurion <[email protected]>

Author: tlaurion

.circleci/config.yml

@@ -197,6 +197,7 @@ jobs:
             - build/x86/coreboot-24.02.01
             - build/x86/coreboot-24.12
             - build/x86/coreboot-dasharo
+            - build/x86/coreboot-mrchromebox
             - build/x86/coreboot-purism
             - build/x86/musl-cross-make-38e52db8358c043ae82b346a2e6e66bc86a53bc1
             - crossgcc

BOARD_TESTERS.md

@@ -37,6 +37,10 @@ xx8x(Kaby Lake Refresh):
 ===
 - [ ] t480: @gaspar-ilom @doritos4mlady @MattClifton76 @notgivenby @akunterkontrolle
 
+ChromeBooks (CR50 based TPM2: does not support TPM unsealed Disk Unlock Key)
+===
+- [ ] Omnigul (AlderLake: Intel 12th Gen): @mdrobnak
+
 Librems:
 ===
 - [ ] Librem 11(JasperLake): @JonathonHall-Purism