usb: gadget: midi2: Reverse-select at the right place

We should do reverse selection of other components from
CONFIG_USB_F_MIDI2 which is tristate, instead of
CONFIG_USB_CONFIGFS_F_MIDI2 which is bool, for satisfying subtle
module dependencies.

Fixes: 8b645922 ("usb: gadget: Add support for USB MIDI 2.0 function driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20250101131124.27599-1-tiwai@suse.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>