ext/ogg/: Fix the case where the muxer would mark pages as delta frames when they are not (vorbis only ogg).
ext/ogg/: Fix the case where the muxer would mark pages as delta frames when they are not (vorbis only ogg).

Original commit message from CVS:
* ext/ogg/gstoggdemux.c: (gst_ogg_pad_push):
* ext/ogg/gstoggmux.c: (gst_ogg_mux_next_buffer),
(gst_ogg_mux_send_headers), (gst_ogg_mux_loop):
Fix the case where the muxer would mark pages as delta
frames when they are not (vorbis only ogg).

collects/gst-plugins-ugly,sebras/gst-plugins-ugly,ylatuya/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,matsu/gst-plugins-ugly,alessandrod/gst-plugins-ugly,GStreamer/gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,StreamUtils/gst-plugins-ugly,krieger-od/gst-plugins-ugly,Distrotech/gst-plugins-ugly,GStreamer/gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,jar1karp/gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,cablelabs/gst-plugins-ugly,fluendo/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,shelsonjava/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,jar1karp/gst-plugins-ugly,surround-io/gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,prajnashi/gst-plugins-ugly,Distrotech/gst-plugins-ugly,cablelabs/gst-plugins-ugly,surround-io/gst-plugins-ugly,collects/gst-plugins-ugly,Distrotech/gst-plugins-ugly,StreamUtils/gst-plugins-ugly,collects/gst-plugins-ugly,sebras/gst-plugins-ugly,Lachann/gst-plugins-ugly,matsu/gst-plugins-ugly,jahrome/gst-plugins-ugly,shelsonjava/gst-plugins-ugly,Distrotech/gst-plugins-ugly,Kurento/gst-plugins-ugly,alessandrod/gst-plugins-ugly,Lachann/gst-plugins-ugly,fluendo/gst-plugins-ugly,reynaldo-samsung/gst-plugins-ugly,sebras/gst-plugins-ugly,GStreamer/gst-plugins-ugly,krieger-od/gst-plugins-ugly,surround-io/gst-plugins-ugly,Distrotech/gst-plugins-ugly,fluendo/gst-plugins-ugly,knuesel/gst-plugins-ugly,ahmedammar/platform_external_gst_plugins_ugly,jahrome/gst-plugins-ugly,ylatuya/gst-plugins-ugly,Kurento/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,matsu/gst-plugins-ugly,matsu/gst-plugins-ugly,alessandrod/gst-plugins-ugly,Kurento/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer__gst-plugins-ugly,knuesel/gst-plugins-ugly,prajnashi/gst-plugins-ugly,collects/gst-plugins-ugly,knuesel/gst-plugins-ugly,prajnashi/gst-plugins-ugly,krieger-od/gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,freedesktop-unofficial-mirror/gstreamer-sdk__gst-plugins-ugly,PPCDroid/external-gst-plugins-ugly,GrokImageCompression/gst-plugins-ugly,cablelabs/gst-plugins-ugly,jar1karp/gst-plugins-ugly,jahrome/gst-plugins-ugly,Lachann/gst-plugins-ugly,ylatuya/gst-plugins-ugly,krieger-od/gst-plugins-ugly,jpakkane/gstreamer-plugins-ugly,StreamUtils/gst-plugins-ugly,shelsonjava/gst-plugins-ugly