drm/amdgpu/sdma4: specify vega12 firmware

Declare the firmware and fetch the proper file.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

@@ -40,6 +40,8 @@
 
 MODULE_FIRMWARE("amdgpu/vega10_sdma.bin");
 MODULE_FIRMWARE("amdgpu/vega10_sdma1.bin");
+MODULE_FIRMWARE("amdgpu/vega12_sdma.bin");
+MODULE_FIRMWARE("amdgpu/vega12_sdma1.bin");
 MODULE_FIRMWARE("amdgpu/raven_sdma.bin");
 
 #define SDMA0_POWER_CNTL__ON_OFF_CONDITION_HOLD_TIME_MASK  0x000000F8L
@@ -162,6 +164,9 @@ static int sdma_v4_0_init_microcode(struct amdgpu_device *adev)
 	case CHIP_VEGA10:
 		chip_name = "vega10";
 		break;
+	case CHIP_VEGA12:
+		chip_name = "vega12";
+		break;
 	case CHIP_RAVEN:
 		chip_name = "raven";
 		break;