rtspsrc: Use the correct type for storing the max-rtcp-rtp-time-diff property

It's an integer property and rtpbin also expects an integer. Passing it as a GstClockTime (guint64) to g_object_set() will cause problems, and on big endian MIPS apparently causes crashes.

Fixes #737 (closed)

gst/rtsp/gstrtspsrc.h

@@ -268,7 +268,7 @@ struct _GstRTSPSrc {
   gboolean          do_retransmission;
   gint              ntp_time_source;
   gchar            *user_agent;
-  GstClockTime      max_rtcp_rtp_time_diff;
+  gint              max_rtcp_rtp_time_diff;
   gboolean          rfc7273_sync;
   guint64           max_ts_offset_adjustment;
   gint64            max_ts_offset;