drm/amdgpu: fix invadate operation for umsch

Since the type of data_size is uint32_t, adev->umsch_mm.data_size - 1 >> 16 >> 16 is 0
regardless of the values of its operands

So removing the operations upper_32_bits and lower_32_bits.
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c

@@ -116,9 +116,8 @@ static int umsch_mm_v4_0_load_microcode(struct amdgpu_umsch_mm *umsch)
 		upper_32_bits(adev->umsch_mm.data_start_addr));
 
 	WREG32_SOC15_UMSCH(regVCN_MES_LOCAL_MASK0_LO,
-		lower_32_bits(adev->umsch_mm.data_size - 1));
-	WREG32_SOC15_UMSCH(regVCN_MES_LOCAL_MASK0_HI,
-		upper_32_bits(adev->umsch_mm.data_size - 1));
+		adev->umsch_mm.data_size - 1);
+	WREG32_SOC15_UMSCH(regVCN_MES_LOCAL_MASK0_HI, 0);
 
 	data = adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ?
 	       0 : adev->umsch_mm.data_fw_gpu_addr;