drm/i915: extract readout_hw_state from setup_hw_state

Simply grew too big. This also makes the fixup and restore logic in
setup_hw_state stand out a bit more clearly.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
1 file changed