Android: use symlinks for driver loading

Instead of having special driver loading logic for Android, create
symlinks to gallium_dri.so so we can use the standard loading logic.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>

src/egl/drivers/dri2/egl_dri2.c

@@ -516,15 +516,6 @@ dri2_open_driver(_EGLDisplay *disp)
       /* not need continue to loop all paths once the driver is found */
       if (dri2_dpy->driver != NULL)
          break;
-
-#ifdef ANDROID
-      snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
-      dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
-      if (dri2_dpy->driver == NULL)
-         _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
-      else
-         break;
-#endif
    }
 
    if (dri2_dpy->driver == NULL) {