platform: msm_shared: Update MDP5 for msm8956 support

msm8956 supports MDSS 1.11 version and has Interface-2 in addition
when compared to msm8952. This change updates MDP5 with the new
MDSS_MDP version checks at relevant places for MDP5 configuration for
8956, adds support for split pingpong for msm8956.

Change-Id: I823a1744cde84924aa7d578832899c067c389b60
diff --git a/platform/msm_shared/include/mdp5.h b/platform/msm_shared/include/mdp5.h
index e48fe85..43e2c0e 100644
--- a/platform/msm_shared/include/mdp5.h
+++ b/platform/msm_shared/include/mdp5.h
@@ -91,6 +91,7 @@
 #define MDSS_MDP_HW_REV_108    MDSS_MDP_REV(1, 8, 0) /* 8939 v1.0 */
 #define MDSS_MDP_HW_REV_109    MDSS_MDP_REV(1, 9, 0) /* 8994 v2.0 */
 #define MDSS_MDP_HW_REV_110    MDSS_MDP_REV(1, 10, 0) /* 8992 v1.0 */
+#define MDSS_MDP_HW_REV_111    MDSS_MDP_REV(1, 11, 0) /* 8956 v1.0 */
 #define MDSS_MDP_HW_REV_112    MDSS_MDP_REV(1, 12, 0) /* 8952 v1.0 */
 #define MDSS_MDP_HW_REV_200    MDSS_MDP_REV(2, 0, 0) /* 8092 v1.0 */