drm/radeon: Modify kgd_engine_type enum to match CZ

This patch splits the KGD_ENGINE_SDMA to KGD_ENGINE_SDMA1 and
KGD_ENGINE_SDMA2 to match CZ definitions.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c
index e476c33..9a4d69e 100644
--- a/drivers/gpu/drm/radeon/radeon_kfd.c
+++ b/drivers/gpu/drm/radeon/radeon_kfd.c
@@ -845,7 +845,8 @@
 		hdr = (const union radeon_firmware_header *) rdev->rlc_fw->data;
 		break;
 
-	case KGD_ENGINE_SDMA:
+	case KGD_ENGINE_SDMA1:
+	case KGD_ENGINE_SDMA2:
 		hdr = (const union radeon_firmware_header *)
 							rdev->sdma_fw->data;
 		break;