Free memory allocated for address0_mutex if allocation of bandwidth_mutex
failed.

Fixes: feb26ac3 ("usb: core: hub: hub_port_init lock controller instead of bus")
Signed-off-by: NAnton Bondarenko <anton.bondarenko.sama@gmail.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>