soc/intel: Select GMA v2 for ADL, MTL, TGL to reflect port/pipe defs

Intel GFX IP TRANS_DDI_FUNC_CTL register bit definitions have changed
since Tiger Lake.

This register is used to map ports and pipes to display controllers,
so reflecting the correct status is important for detecting physical
display end point devices.

This patch ensures that ADL, MTL, and TGL SoCs choose GMA version 2 to
properly reflect the updated port and pipe register definitions.

BUG=b:299137940
TEST=Build and boot google/rex successfully.

Change-Id: Ie2082747d18a5f136f410b1019be4d6c801617b1
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78079
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 038d57c..82ec8f2 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -29,6 +29,7 @@
 	select INTEL_GMA_ACPI
 	select INTEL_GMA_ADD_VBT if RUN_FSP_GOP
 	select INTEL_GMA_OPREGION_2_1
+	select INTEL_GMA_VERSION_2
 	select INTEL_TXT_LIB
 	select MP_SERVICES_PPI_V2
 	select MRC_SETTINGS_PROTECT