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 <[e-mail]>
Suggested-by: Tim Huang <[e-mail]>
Reviewed-by: Tim Huang <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 		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;