Use cpuid_eax and cpuid_ecx instead of sort-of open-coding the same
functionality in cpu_check_deterministic_cache_cpuid_supported.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ib0dc2be4f602bf63183b9096e38403ae2f45d959
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78058
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>