disp: sde: add CRTC property for VM requests

Add a CRTC property to request the VM to acquire/release
HW resources.

Display driver in trusted VM boots up without HW ownership. Set
the default value of the property as RELEASED to handle resource
assignments.

Change-Id: Iea651a2fea902d95d4b954052af4ef016af15a91
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>

msm/msm_drv.h

@@ -172,6 +172,7 @@ enum msm_mdp_crtc_property {
 
 	CRTC_PROP_IDLE_PC_STATE,
 	CRTC_PROP_CACHE_STATE,
+	CRTC_PROP_VM_REQ_STATE,
 
 	/* total # of properties */
 	CRTC_PROP_COUNT