[cogl] Flush matrix before clip planes
[cogl] Flush matrix before clip planes

glClipPlane() is affected by modelview matrix so we need to flush
before calling it.

Signed-off-by: Emmanuele Bassi <049ee2061f71220e5aaf33f5be422fc2a2b06a44@linux.intel.com>

spatulasnout/clutter,djdeath/clutter-multithreaded,djdeath/clutter-android,GNOME/clutter,djdeath/clutter,jigpu/clutter,heysion/clutter-clone,tardyp/clutter,collects/clutter,kerrickstaley/clutter-vala,collects/clutter,ebassi/clutter,tardyp/clutter,nobled/clutter,djdeath/clutter,Distrotech/clutter,tardyp/clutter,djdeath/clutter-multithreaded,jigpu/clutter,jigpu/clutter,djdeath/clutter,spatulasnout/clutter,kerrickstaley/clutter-vala,nobled/clutter,dlespiau/clutter,Distrotech/clutter,jigpu/clutter,collects/clutter,dlespiau/clutter,GNOME/clutter,Distrotech/clutter,djdeath/clutter-android,ebassi/clutter,djdeath/clutter-android,GNOME/clutter,rkudiyarov/clutter_osx,rkudiyarov/clutter_osx,Distrotech/clutter,collects/clutter,kerrickstaley/clutter-vala,spatulasnout/clutter,ebassi/clutter,Distrotech/clutter,heysion/clutter-clone,djdeath/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,jigpu/clutter,djdeath/clutter,collects/clutter,rkudiyarov/clutter_osx,GNOME/clutter,nobled/clutter,djdeath/clutter-android,djdeath/clutter-android,heysion/clutter-clone,Distrotech/clutter,ebassi/clutter,GNOME/clutter,heysion/clutter-clone,rkudiyarov/clutter_osx,djdeath/clutter,spatulasnout/clutter,jigpu/clutter,djdeath/clutter-multithreaded,dlespiau/clutter,spatulasnout/clutter,ebassi/clutter,kerrickstaley/clutter-vala