Add required #defines for EGL_EXT_swap_buffers_with_damage
Add required #defines for EGL_EXT_buffer_age

This extension is supported by the nVidia Tegra4 and requires no additional
libhybris support beyond 2 preprocessor symbols.
Merge pull request #207 from jekstrand/master

Add #defines required by EGL_EXT_swap_buffers_with_damage and EGL_EXT_buffer_age