Disable input dispatch until boot finished.

Bug: 6263070
Change-Id: I25e15e3d8af8eb3343c7b684fec345337d9f6aab
diff --git a/services/input/InputDispatcher.cpp b/services/input/InputDispatcher.cpp
index dad4ef4..ada9d9e 100644
--- a/services/input/InputDispatcher.cpp
+++ b/services/input/InputDispatcher.cpp
@@ -185,7 +185,7 @@
     mPolicy(policy),
     mPendingEvent(NULL), mAppSwitchSawKeyDown(false), mAppSwitchDueTime(LONG_LONG_MAX),
     mNextUnblockedEvent(NULL),
-    mDispatchEnabled(true), mDispatchFrozen(false), mInputFilterEnabled(false),
+    mDispatchEnabled(false), mDispatchFrozen(false), mInputFilterEnabled(false),
     mInputTargetWaitCause(INPUT_TARGET_WAIT_CAUSE_NONE) {
     mLooper = new Looper(false);