gallium: add face, dirtyLevels params to pipe->texture_update()

This provides better information about which images in texture object have changed.
Also, call texture_update() from more places previously missed.

src/gallium/drivers/softpipe/sp_texture.c

@@ -174,7 +174,8 @@ softpipe_get_tex_surface_screen(struct pipe_screen *screen,
 
 static void
 softpipe_texture_update(struct pipe_context *pipe,
-                        struct pipe_texture *texture)
+                        struct pipe_texture *texture,
+                        uint face, uint levelsMask)
 {
    struct softpipe_context *softpipe = softpipe_context(pipe);
    uint unit;