disp: msm: sde: add drm properties required for wb rotation

This change installs required drm properties for writeback
connector to implement rotation with writeback hw in mdss.

Change-Id: I85ed359d06ff4bafee85a4bfa5b8a99774311e60
Signed-off-by: Prabhanjan Kandula <quic_pkandula@quicinc.com>

msm/msm_drv.h

@@ -243,6 +243,7 @@ enum msm_mdp_conn_property {
 	CONNECTOR_PROP_CACHE_STATE,
 	CONNECTOR_PROP_DSC_MODE,
 	CONNECTOR_PROP_WB_USAGE_TYPE,
+	CONNECTOR_PROP_WB_ROT_TYPE,
 
 	/* total # of properties */
 	CONNECTOR_PROP_COUNT