[TF-A] Removal of erratum titled “Disabling of data prefetcher with outstanding prefetch TLB miss might cause a deadlock”.

Hi All,

If you're downstream platform maintainer or maintainer for mtk or qti platforms for TF-A,

I want to bring to your attention about this patch in review - https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/36700

This patch removes erratum titled “Disabling of data prefetcher with outstanding prefetch TLB miss might cause a deadlock” this should not be handled within TF-A. The static setting of PF_MODE in TF-A does not correctly address the erratum and may introduce unnecessary performance degradation on platforms that adopt it without fully understanding its implications.

-- Thanks, Govindraj R