glamor: xv: Fix sw cursor rendering issue

When reporting damage, the misprite swcursor will try to remove cursor
by restoring the under cursor area.

This will override the previous draw, so we need to move it before
the rendering.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Status Job ID Name Coverage
  Docker Image
passed #745048
debian-testing

00:00:31

 
  Build And Test
passed #745049
autotools-build-and-test

00:05:25

passed #745050
meson-build-and-test

00:01:29