arch/x86: Add symbols for CAR MTRRs in linker script

This allows to remove references to CONFIG_DCACHE_RAM entries in
most cache_as_ram.S files. While Kconfig variable names appear
for every stage, linker symbol names will only appear in stages
they are valid in.

Also, linker scripts have LOG2CEIL which comes in handy to enforce
MTRR alignments.

Change-Id: I2fef3546d2bfea2d4d8f87aaf8376e5566fd6aaa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30872
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions