Camera3Device: Update frame counters/timestamps for dumpsys info

For output streams, increment frame count and update timestamp when a
filled buffer is queued to the output buffer queue.

For input streams, increment frame count and update timestamp when a
buffer is acquired from the input buffer queue.

Test: Manual inspection of adb shell dumpsys media.camera while
   running DevCamera
Change-Id: I8dc1d134baf5ad467e169f3ba6ffe0d1486df9dc
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index b5883e3..f971116 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -239,6 +239,7 @@
     }
 
     mLastTimestamp = timestamp;
+    mFrameCount++;
 
     return OK;
 }