egl: implement EGL_KHR_gl_colorspace (v2)

v2: add missing "break"

Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 0d1f4c6..a439a3b 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -131,10 +131,13 @@
    }
 
    if (dri2_dpy->dri2) {
+      const __DRIconfig *config =
+         dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
+                             dri2_surf->base.GLColorspace);
+
       dri2_surf->dri_drawable =
-         (*dri2_dpy->dri2->createNewDrawable) (dri2_dpy->dri_screen,
-                                               dri2_conf->dri_double_config,
-                                               dri2_surf->gbm_surf);
+         (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
+                                              dri2_surf->gbm_surf);
 
    } else {
       assert(dri2_dpy->swrast != NULL);