gl-renderer: make EGL typedefs similar to EGL/egl.h when building without EGL support
gl-renderer: make EGL typedefs similar to EGL/egl.h when building without EGL support

Signed-off-by: Vasily Khoruzhick <2750baa0af9b656228a0c6ae55ea7df1c78e68de@gmail.com>

sir-murray/weston,kwm81/weston,sir-murray/weston,kwm81/weston,Fantu/compositor-spice,Gnurou/weston,eyolfson/weston,mchalupa/weston,Fantu/compositor-spice,Tarnyko/weston-xdg_surface_present,mchalupa/weston,eyolfson/weston,krezovic/weston,udoprog/weston,krezovic/weston,Tarnyko/weston-xdg_surface_present,jonnylamb/weston,udoprog/weston,Gnurou/weston,giucam/weston,jonnylamb/weston,xorgy/weston,xorgy/weston,Fantu/compositor-spice,giucam/weston