egl: enhance KHR_gl_image extensions checks

Drop the (duplicate) top-level check in dri2_create_image_khr() and add
the respective checks in dri2_create_image_khr_{texture,renderbuffer}

v2: use unreachable instead of assert in dri2_create_image_khr_texture

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
1 file changed