drm/amd/display: Clean up some inconsistent indenting

No functional modification involved.

smatch warnings:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn32/dcn32_mpc.c:306 mpc32_get_shaper_current() warn: inconsistent indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_mpc.c

@@ -300,8 +300,7 @@ static enum dc_lut_mode mpc32_get_shaper_current(struct mpc *mpc, uint32_t mpcc_
 	uint32_t state_mode;
 	struct dcn30_mpc *mpc30 = TO_DCN30_MPC(mpc);
 
-	REG_GET(MPCC_MCM_SHAPER_CONTROL[mpcc_id],
-			MPCC_MCM_SHAPER_MODE_CURRENT, &state_mode);
+	REG_GET(MPCC_MCM_SHAPER_CONTROL[mpcc_id], MPCC_MCM_SHAPER_MODE_CURRENT, &state_mode);
 
 	switch (state_mode) {
 	case 0:
@@ -317,6 +316,7 @@ static enum dc_lut_mode mpc32_get_shaper_current(struct mpc *mpc, uint32_t mpcc_
 		mode = LUT_BYPASS;
 		break;
 	}
+
 	return mode;
 }