Move specific options under the boolean and remove dummy
SOC_SPECIFIC_OPTIONS.
Change-Id: I6ae52ceb61489e5a050a60d1fbbf4250960407eb
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76487
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>