disp: msm: sde: extend topology_control to reserve dnsc_blur

Extend the topology_control connector property to support downscale
blur block. This gives user-mode the capability to reserve the downscale
blur block. Add sde rm changes to reserve the block based on this
connector property during sde_rm_reserve.

Change-Id: Ica2d7c57e6f528eb917acb6aae7e860352895a06
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>

msm/sde/sde_rm.h

@@ -113,6 +113,7 @@ enum sde_rm_topology_group {
  * @SDE_RM_TOPCTL_DS  : Require layer mixers with DS capabilities
  * @SDE_RM_TOPCTL_CWB  : Require layer mixers with CWB capabilities
  * @SDE_RM_TOPCTL_DCWB : Require layer mixers with DCWB capabilities
+ * @SDE_RM_TOPCTL_DNSC_BLUR : Require writeback with downscale blur capabilities
  */
 enum sde_rm_topology_control {
 	SDE_RM_TOPCTL_RESERVE_LOCK,
@@ -121,6 +122,7 @@ enum sde_rm_topology_control {
 	SDE_RM_TOPCTL_DS,
 	SDE_RM_TOPCTL_CWB,
 	SDE_RM_TOPCTL_DCWB,
+	SDE_RM_TOPCTL_DNSC_BLUR,
 };
 
 /**