Power-saving is causing plops on audio start/stop on ASRock H81M-HDS
machines, add these to the power_save blacklist.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1525104Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>