usb: gadget: tcm: follow naming conventions

Prepare for splitting tcm_usb_gadget into legacy gadget proper and f_tcm.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
1 file changed