Merge tag 'usb-serial-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/johan...

Johan writes:

USB-serial fixes for v4.2-rc2

Here's an idr memory-leak fix and a couple of new device ids.

Included is also a build fix for mos7720 on the mn10300 architecture,
which has a register with the same name as one of the driver defines.

Signed-off-by: Johan Hovold <johan@kernel.org>