[coreboot-gerrit] [S] Change in coreboot[main]: arch/arm64: Support FEAT_CCIDX

[Yidi Lin (Code Review)]

Attention is currently required from: Julius Werner, Paul Menzel.

Yidi Lin has posted comments on this change by Yidi Lin. ( https://review.coreboot.org/c/coreboot/+/82635?usp=email )

Change subject: arch/arm64: Support FEAT_CCIDX
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Patch Set 2:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/82635/comment/74c06d01_a17ce4f4?usp... :
PS1, Line 21: TEST=mmu_disable works on the FEAT_CCIDX supported SoC.
> Can it be tested with QEMU [1]? […]

Yes, I manually added `mmu_disable` to the bootblock.c and tested with the following command. 
```
qemu-system-aarch64 -bios ./coreboot-builds/EMULATION_QEMU_AARCH64/coreboot.rom    -M virt,secure=on,virtualization=on -cpu max -cpu cortex-a710 -nographic -m 8192M
```
Set CPU to `cortex-a710` and turn on all features with `max`.