System suspend will power off audio, so we need regcache sync when
system resume.

Remove pm_runtime_get_sync in dev probe and pm_runtime_put_sync in
dev remove.So that audio dev can triggle runitme suspend and resume.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>