Camera: Do not signal AutoConditionLock if acquisition times out

It's possible for AutoConditionLock to time out in waitAndAcquire
while waiting for the condition. In this case, we don't want to
reset the state because others may be holding the condition without
lock.

Bug: 28295136
Change-Id: Ife90232daef8fd0d31acf9e52cfbcf542987e3fa
diff --git a/services/camera/libcameraservice/utils/AutoConditionLock.h b/services/camera/libcameraservice/utils/AutoConditionLock.h
index 9a3eafc..b7f167b 100644
--- a/services/camera/libcameraservice/utils/AutoConditionLock.h
+++ b/services/camera/libcameraservice/utils/AutoConditionLock.h
@@ -92,6 +92,7 @@
 
     std::shared_ptr<WaitableMutexWrapper> mManager;
     Mutex::Autolock mAutoLock;
+    bool mAcquired;
 };
 
 }; // namespace android