camera: vfe32: Add RDI reg update ack notification.

RDI and PIX have different timing characteristics.
They should not share the same START_ACK notification.
Add rdi0, rdi1, rdi2 reg update ack notifications.

Change-Id: Id36b52ae5cf98f5f9f86e92028ec7ab0e7427a23
Signed-off-by: Shuzhen Wang <shuzhenw@codeaurora.org>
diff --git a/include/media/msm_isp.h b/include/media/msm_isp.h
index ab9e70c..f8dbed9 100644
--- a/include/media/msm_isp.h
+++ b/include/media/msm_isp.h
@@ -65,7 +65,9 @@
 #define MSG_ID_STATS_BG                 46
 #define MSG_ID_STATS_BF                 47
 #define MSG_ID_STATS_BHIST              48
-
+#define MSG_ID_RDI0_UPDATE_ACK          49
+#define MSG_ID_RDI1_UPDATE_ACK          50
+#define MSG_ID_RDI2_UPDATE_ACK          51
 
 /* ISP command IDs */
 #define VFE_CMD_DUMMY_0                                 0