mb/intel/mtlrvp: Select SOC_INTEL_METEORLAKE_U_P

Intel/MTLRVP is built with Intel Meteor Lake-U SoC, so select it.
Currently, there is no functional difference, but in the future FSP
UPD parameters can be overridden properly.

BUG=b:276697173
TEST=Able to build and boot intel/mtlrvp.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I8b1dec47ef9d12ac50317b86c4f0bc5fbe4e4dc3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75607
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>

src/mainboard/intel/mtlrvp/Kconfig

@@ -18,7 +18,7 @@ config BOARD_INTEL_MTLRVP_COMMON
 	select HAVE_SPD_IN_CBFS
 	select MAINBOARD_HAS_CHROMEOS
 	select SOC_INTEL_CSE_LITE_SKU
-	select SOC_INTEL_METEORLAKE
+	select SOC_INTEL_METEORLAKE_U_P
 
 config BOARD_INTEL_MTLRVP_P
 	select BOARD_INTEL_MTLRVP_COMMON