gst-omx: backported from buildroot-rpi
qt5webkit: fixed GStreamer 0.10/1.x build options

From now on GStreamer 1.x will be on by default. GStreamer 0.10
support builds but doesn't work yet at runtime.
qt5webkit: necessary patches for GStreamer 1.x media support in WebKit1

- qt5webkit-0006-link-against-gst-egl.patch: gstreamer-egl is now
  required so the sink/player can use the gst_egl APIs.
- qt5webkit-0010-enable-videotrigger-with-acceleratedcompositing.patch:
  Render video frames using the Accelerated Compositing stack.
- qt5webkit-0011-Win-Fixed-linker-error-with-GStreamer.patch: Upstream
  patch fixing a link error for freeOwnedGPtr.
- qt5webkit-0012-features-prf-gst-cleanup.patch: defer build-time
  GStreamer configuration to whoever calls qmake (qt5webkit.mk)
- qt5webkit-0013-egl-media-player.patch: Video sink and player
  adaptations for hw-accelerated decoding/rendering on the Raspberry
  Pi.

Notes:

1. parts of qt5webkit-0013-egl-media-player.patch are reused from
http://cgit.collabora.com/git/user/julien/WebKit.git/log/?h=rpi-wayland-ac2-eglimage

2. The GStreamer 0.10 code path doesn't work yet. Please use 1.x
exclusively for now.
Merge pull request #5 from Metrological/qtwebkit1-egl

Qtwebkit1 egl media  support