mb/google/poppy: Introduce VARIANT_SPECIFIC_OPTIONS_*

In order to allow variants to select different Kconfig options, this
change adds VARIANT_SPECIFIC_OPTIONS_${VARIANT_NAME} which can be
selected by each variant in Kcnonfig.name.

Change-Id: I15db2fdac5c9e55f9698c8a0c083d6467afae245
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/22700
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2 files changed