radv: fix writing depth/stencil clear values to image
Use the fastest way only if both aspects are used. Oops.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111728 Fixes: 218ce349 ("radv: add mipmap support for the clear depth/stencil values") Signed-off-by: Samuel Pitoiset samuel.pitoiset@gmail.com