[PATCH 4.4 080/138] drm/amdgpu/gmc7: add missing mullins case

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

commit 7f555c8e5a84b348c2b76f4ca78eae7222354c03 upstream.

Looks like this got missed when we ported the code from radeon.

Reviewed-by: Edward O'Callaghan <redacted>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c

@@ -167,6 +167,7 @@ static int gmc_v7_0_init_microcode(struc
 		break;
 	case CHIP_KAVERI:
 	case CHIP_KABINI:
+	case CHIP_MULLINS:
 		return 0;
 	default: BUG();
 	}