Disable NXP 'adaptive frame drop' by default.

It's unclear what use cases this algorithm is tuned for but standard
GStreamer QoS does a much better job. This one causes severe jitter
if down stream can't keep up for whatever reason, it's also flip-
flopping between dropping and not dropping frames for an arbitrary
200 ms window.

Change-Id: I0d89eb55bf0c7b63d4a5a5c1917ef5d862419f68
diff --git a/plugins/vpu/gstvpudec.c b/plugins/vpu/gstvpudec.c
index dc698c4..482de8e 100755
--- a/plugins/vpu/gstvpudec.c
+++ b/plugins/vpu/gstvpudec.c
@@ -60,7 +60,7 @@
 
 #define DEFAULT_LOW_LATENCY FALSE
 #define DEFAULT_OUTPUT_FORMAT 0
-#define DEFAULT_ADAPTIVE_FRAME_DROP TRUE
+#define DEFAULT_ADAPTIVE_FRAME_DROP FALSE
 #define DEFAULT_FRAMES_PLUS 0
 /* Default to use VPU memory for video frame buffer as all video frame buffer
  * must registe to VPU. Change video frame buffer will cause close VPU which