amlvideosink: CB1 disable last-buffer flow [1/1]

PD#SWPL-108744

Problem:
basesink will deep copy last dma buf when resolution change
this will casuse hang when dma ioctl:DMA_BUF_IOCTL_SYNC

Solution:
disable get last-buffer flow in amlvideosink

Verify:
(detail info)

Change-Id: If1ba8210c400893dcab83136511dd024408bfdb8
Signed-off-by: xuesong.jiang <xuesong.jiang@amlogic.com>
diff --git a/src/gstamlvideosink.c b/src/gstamlvideosink.c
index 1b514e1..2f9eba9 100644
--- a/src/gstamlvideosink.c
+++ b/src/gstamlvideosink.c
@@ -390,6 +390,7 @@
     gst_base_sink_set_sync(basesink, FALSE);
 
     gst_base_sink_set_qos_enabled(basesink, FALSE);
+    gst_base_sink_set_last_sample_enabled(basesink, FALSE);
 }
 
 static void gst_aml_video_sink_get_property(GObject *object, guint prop_id,