ALSA: usb-audio: Move autosuspend quirk into quirk_flags

The auto-suspend suppression workaround for Lenovo machines are
handled in quirks-table.h.  Now it's more easier to handle with
quirk_flags.

Link: https://lore.kernel.org/r/20210729074404.19728-2-tiwai@suse.de


Signed-off-by: Takashi Iwai <tiwai@suse.de>