mesa: Add getters for the GL_ARB_shader_storage_buffer_object max constants

v2:
- Add tessellation shader constants support

v3:
- Add GLES 3.1 support.

v4:
- Move the getters to the proper place

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
2 files changed