soc/intel/elkhartlake: Select `X86_CLFLUSH_CAR` config

This patch selects `X86_CLFLUSH_CAR` config for running `clflush`
to invalidate the cache region based on commit 3134a81 for boot
performance improvement.

Signed-off-by: Lean Sheng Tan <sheng.tan@9elements.com>
Change-Id: I8f8a0bfeaea508d3b4ad1b3fe2e68742cbab5570
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73687
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions