drm/amdgpu: add GFXHUB 11.5.1 support

This patch to add GFXHUB 11.5.1  support.
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c

@@ -587,6 +587,7 @@ static void gmc_v11_0_set_gfxhub_funcs(struct amdgpu_device *adev)
 		adev->gfxhub.funcs = &gfxhub_v3_0_3_funcs;
 		break;
 	case IP_VERSION(11, 5, 0):
+	case IP_VERSION(11, 5, 1):
 		adev->gfxhub.funcs = &gfxhub_v11_5_0_funcs;
 		break;
 	default:
@@ -748,6 +749,7 @@ static int gmc_v11_0_sw_init(void *handle)
 	case IP_VERSION(11, 0, 3):
 	case IP_VERSION(11, 0, 4):
 	case IP_VERSION(11, 5, 0):
+	case IP_VERSION(11, 5, 1):
 		set_bit(AMDGPU_GFXHUB(0), adev->vmhubs_mask);
 		set_bit(AMDGPU_MMHUB0(0), adev->vmhubs_mask);
 		/*