mb/google/brya/var/agah: Add RPL Support to Agah

Enable RPL support for Agah.

BUG=b:258432915
TEST=build and boot ADL based Agah. RPL based testing
when hardware becomes available.

Change-Id: I5437dbf9e7812367a280d1ed659f286fb9b62a68
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69398
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/Kconfig.name

@@ -3,6 +3,7 @@ comment "Brya"
 config BOARD_GOOGLE_AGAH
 	bool "->  Agah"
 	select BOARD_GOOGLE_BASEBOARD_BRYA
+	select SOC_INTEL_RAPTORLAKE
 	select DRIVERS_GENESYSLOGIC_GL9750
 	select INCLUDE_NVIDIA_GPU_ASL
 	select PCIEXP_SUPPORT_RESIZABLE_BARS