msm: mdss: Move assertive display calculation to workqueue

Removes the possible case of delaying display_commit completion. AD_input
ioctl returns with last strength/backlight values calculated to aid in
management of AD feature from userspace.

Change-Id: I4c9a2941deece8f406b19b6b206c9fadf4f7250a
Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
diff --git a/include/linux/msm_mdp.h b/include/linux/msm_mdp.h
index f9e483c..be30494 100644
--- a/include/linux/msm_mdp.h
+++ b/include/linux/msm_mdp.h
@@ -631,6 +631,7 @@
 		uint32_t amb_light;
 		uint32_t strength;
 	} in;
+	uint32_t output;
 };
 
 enum {