vrend: Also test for EXT_buffer_storage

GLES hosts might expose this.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>

src/vrend_renderer.c

@@ -204,7 +204,7 @@ static const  struct {
 } feature_list[] = {
    FEAT(arb_or_gles_ext_texture_buffer, 31, UNAVAIL, "GL_ARB_texture_buffer_object", "GL_EXT_texture_buffer", NULL),
    FEAT(arb_robustness, UNAVAIL, UNAVAIL,  "GL_ARB_robustness" ),
-   FEAT(arb_buffer_storage, 44, UNAVAIL, "GL_ARB_buffer_storage"),
+   FEAT(arb_buffer_storage, 44, UNAVAIL, "GL_ARB_buffer_storage", "GL_EXT_buffer_storage"),
    FEAT(arrays_of_arrays, 43, 31, "GL_ARB_arrays_of_arrays"),
    FEAT(atomic_counters, 42, 31,  "GL_ARB_shader_atomic_counters" ),
    FEAT(base_instance, 42, UNAVAIL,  "GL_ARB_base_instance", "GL_EXT_base_instance" ),