glx/dri3: Fix passing renderType into glXCreateContext

Without this, trying to create a GLX_RGBA_FLOAT_TYPE_ARB context would
fail, because GLX_RGBA_TYPE would be a mismatch with the fbconfig.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>

src/glx/dri3_glx.c

@@ -324,9 +324,10 @@ dri3_create_context(struct glx_screen *base,
                     struct glx_context *shareList, int renderType)
 {
    unsigned int error;
+   uint32_t attribs[2] = { GLX_RENDER_TYPE, renderType };
 
    return dri3_create_context_attribs(base, config_base, shareList,
-                                      0, NULL, &error);
+                                      1, attribs, &error);
 }
 
 static void