This patch provides an option for non-chrome devices to make use of
FSP-T for performing cache-as-ram initialization. Majority of IOTG users
are using FSP-T for CAR implementation and aren't able to select FSP_CAR
Kconfig from SoC without conflicting with existing CAR config.
TEST=Ensure that both the Chrome platform and non Chrome OS platform
can select either CAR implementation based on Kconfig options
FSP_CAR or CAR_NEM_ENHANCED. By default Chrome platform choose
CAR_NEM_ENHANCED Kconfig and non Chrome platforms choose
FSP_CAR by default.
Change-Id: If565b649fe1c2abdbcf0a740c15db7253c084ae7
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/23161
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>