Merge branch 'topic/midi20' into for-next

This is a small patch set to change the UMP core for the upcoming
gadget driver support.  Basically exporting a couple of helper
functions and adding a flag to suppress the internal UMP handling.
No functional changes by those alone.

Link: https://lore.kernel.org/r/20230621110241.4751-1-tiwai@suse.de


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