drm/amd/display: fix gamma distortion on Vega

Added missing reg shift/masks to soc base
Signed-off-by: NRoman Li <Roman.Li@amd.com>
Reviewed-by: NHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/dce_transform.h

@@ -237,6 +237,7 @@
 	XFM_SF(DCP0_REGAMMA_CNTLA_REGION_0_1, REGAMMA_CNTLA_EXP_REGION0_NUM_SEGMENTS, mask_sh),\
 	XFM_SF(DCP0_REGAMMA_CNTLA_REGION_0_1, REGAMMA_CNTLA_EXP_REGION1_LUT_OFFSET, mask_sh),\
 	XFM_SF(DCP0_REGAMMA_CNTLA_REGION_0_1, REGAMMA_CNTLA_EXP_REGION1_NUM_SEGMENTS, mask_sh),\
+	XFM_SF(DCP0_REGAMMA_CONTROL, GRPH_REGAMMA_MODE, mask_sh),\
 	XFM_SF(SCL0_SCL_MODE, SCL_MODE, mask_sh), \
 	XFM_SF(SCL0_SCL_TAP_CONTROL, SCL_H_NUM_OF_TAPS, mask_sh), \
 	XFM_SF(SCL0_SCL_TAP_CONTROL, SCL_V_NUM_OF_TAPS, mask_sh), \
@@ -270,6 +271,8 @@
 	XFM_SF(SCL0_SCL_UPDATE, SCL_COEF_UPDATE_COMPLETE, mask_sh), \
 	XFM_SF(LB0_LB_DATA_FORMAT, ALPHA_EN, mask_sh), \
 	XFM_SF(DCFE0_DCFE_MEM_PWR_CTRL, SCL_COEFF_MEM_PWR_DIS, mask_sh), \
+	XFM_SF(DCFE0_DCFE_MEM_PWR_CTRL, DCP_REGAMMA_MEM_PWR_DIS, mask_sh),\
+	XFM_SF(DCFE0_DCFE_MEM_PWR_CTRL, DCP_LUT_MEM_PWR_DIS, mask_sh),\
 	XFM_SF(DCFE0_DCFE_MEM_PWR_STATUS, SCL_COEFF_MEM_PWR_STATE, mask_sh), \
 	XFM_SF(SCL0_SCL_MODE, SCL_PSCL_EN, mask_sh)