usb gadget: don't save bind callback in struct usb_composite_driver

The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the composite driver structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Michał Nazarewicz <[email protected]>
Acked-by: Uwe Kleine-König <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
13 files changed