add libhybris support

it uses the Android fbdev HAL[1] (through libhybris[2])
and the libhybris implementation of wayland-egl.

Configure flags:
 cairo:
   --enable-glesv2=yes  --enable-egl=yes
 weston:
   --with-cairo-glesv2 --enable-fbdev-compositor
 hybris:
   --enable-wayland --enable-arch=x86
   --with-android-headers=<android-headers> --enable-alinker=jb

The android headers are extracted from an AOSP tree,
using hybris/utils/extract-headers.sh

[1]:
https://github.com/android/platform_hardware_libhardware/blob/master/include/hardware/fb.h

[2]: https://github.com/libhybris/libhybris

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>
1 file changed