drm/amdgpu: add Sienna_Cichlid VCN to the VCN family

By adding Sienna_Cichlid VCN firmware
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -42,6 +42,7 @@
 #define FIRMWARE_NAVI10 	"amdgpu/navi10_vcn.bin"
 #define FIRMWARE_NAVI14 	"amdgpu/navi14_vcn.bin"
 #define FIRMWARE_NAVI12 	"amdgpu/navi12_vcn.bin"
+#define FIRMWARE_SIENNA_CICHLID 	"amdgpu/sienna_cichlid_vcn.bin"
 
 MODULE_FIRMWARE(FIRMWARE_RAVEN);
 MODULE_FIRMWARE(FIRMWARE_PICASSO);
@@ -51,6 +52,7 @@ MODULE_FIRMWARE(FIRMWARE_RENOIR);
 MODULE_FIRMWARE(FIRMWARE_NAVI10);
 MODULE_FIRMWARE(FIRMWARE_NAVI14);
 MODULE_FIRMWARE(FIRMWARE_NAVI12);
+MODULE_FIRMWARE(FIRMWARE_SIENNA_CICHLID);
 
 static void amdgpu_vcn_idle_work_handler(struct work_struct *work);
 
@@ -107,6 +109,9 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
 		    (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG))
 			adev->vcn.indirect_sram = true;
 		break;
+	case CHIP_SIENNA_CICHLID:
+		fw_name = FIRMWARE_SIENNA_CICHLID;
+		break;
 	default:
 		return -EINVAL;
 	}