egl: set KHR_gl_texture_3D_image only when the requirements are met.

DRI_IMAGE's createImageFromTexture is used to implement the extension,
so we should check for it prior to advertising.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index f8cadfa..2392bfb 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -702,10 +702,11 @@
           dri2_dpy->image->createImageFromTexture) {
          disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
          disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
+
+         if (dri2_renderer_query_integer(dri2_dpy,
+                                         __DRI2_RENDERER_HAS_TEXTURE_3D))
+             disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
       }
-      if (dri2_renderer_query_integer(dri2_dpy,
-                                      __DRI2_RENDERER_HAS_TEXTURE_3D))
-         disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
 #ifdef HAVE_LIBDRM
       if (dri2_dpy->image->base.version >= 8 &&
           dri2_dpy->image->createImageFromDmaBufs) {