drm/i915: split dgfx features from gen 12

Make them independent so we can use DGFX_FEATURES more generically.
For future platforms that do not use the GEN nomenclature we will define
graphics, media and display separately, so we avoid setting graphics_ver
with the GEN() macro.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210413051002.92589-13-lucas.demarchi@intel.com

drivers/gpu/drm/i915/i915_pci.c

@@ -907,8 +907,7 @@ static const struct intel_device_info rkl_info = {
 		BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0),
 };
 
-#define GEN12_DGFX_FEATURES \
-	GEN12_FEATURES, \
+#define DGFX_FEATURES \
 	.memory_regions = REGION_SMEM | REGION_LMEM, \
 	.has_master_unit_irq = 1, \
 	.has_llc = 0, \
@@ -916,7 +915,8 @@ static const struct intel_device_info rkl_info = {
 	.is_dgfx = 1
 
 static const struct intel_device_info dg1_info __maybe_unused = {
-	GEN12_DGFX_FEATURES,
+	GEN12_FEATURES,
+	DGFX_FEATURES,
 	PLATFORM(INTEL_DG1),
 	.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
 	.require_force_probe = 1,