mesa/main: properly check for EXT_memory_object_fd

This extension isn't supported in GLES 1.x, so let's tighten the check.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32349>

src/mesa/main/externalobjects.c

@@ -1052,7 +1052,7 @@ _mesa_ImportMemoryFdEXT(GLuint memory,
 
    const char *func = "glImportMemoryFdEXT";
 
-   if (!ctx->Extensions.EXT_memory_object_fd) {
+   if (!_mesa_has_EXT_memory_object_fd(ctx)) {
       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(unsupported)", func);
       return;
    }