drm/amdgpu: init RSMU and UMC ip base address for vega20

the driver needs to program RSMU and UMC registers to
support vega20 RAS feature

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Dennis Li <dennis.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -752,6 +752,8 @@ enum amd_hw_ip_block_type {
 	NBIF_HWIP,
 	THM_HWIP,
 	CLK_HWIP,
+	UMC_HWIP,
+	RSMU_HWIP,
 	MAX_HWIP
 };