usb: gadget: push all usb_composite_driver structs into __refdata

As it turns out, Sam's comment was better than I initially assumed. This
patch pushes as struct usb_composite_driver data structures into
__refdata section to avoid a section missmatch report from modpost
because the ->bind() can be marked __init. The only downside is that
modpost does not check between ->bind() and other member. However, it is
temporary.

Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --cc drivers/usb/gadget/acm_ms.c
Simple merge

diff --cc drivers/usb/gadget/audio.c
Simple merge

diff --cc drivers/usb/gadget/cdc2.c
Simple merge

diff --cc drivers/usb/gadget/dbgp.c
Simple merge

diff --cc drivers/usb/gadget/ether.c
Simple merge

diff --cc drivers/usb/gadget/file_storage.c
Simple merge

diff --cc drivers/usb/gadget/g_ffs.c
Simple merge

diff --cc drivers/usb/gadget/gmidi.c
Simple merge

diff --cc drivers/usb/gadget/hid.c
Simple merge

diff --cc drivers/usb/gadget/mass_storage.c
Simple merge

diff --cc drivers/usb/gadget/multi.c
Simple merge

diff --cc drivers/usb/gadget/ncm.c
Simple merge

diff --cc drivers/usb/gadget/nokia.c
Simple merge

diff --cc drivers/usb/gadget/printer.c
Simple merge

diff --cc drivers/usb/gadget/serial.c
Simple merge

diff --cc drivers/usb/gadget/tcm_usb_gadget.c
Simple merge

diff --cc drivers/usb/gadget/webcam.c
Simple merge

diff --cc drivers/usb/gadget/zero.c
Simple merge