usb: typec: ucsi: Optimise ucsi_unregister()

There is no need to reset the PPM when the interface is
unregistered. Quietly silencing the notifications and then
unregistering everything is enough. This speeds up
ucsi_unregister() a lot.

Change-Id: Ib309aa79ee12ebd6a0e299b64046073bd7866a24
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Ajay Gupta <ajayg@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20191104142435.29960-19-heikki.krogerus@linux.intel.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Git-commit: 74ce3e41274805e4a5598f4d98ee4d5160466d07
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git


Signed-off-by: Jack Pham <jackp@codeaurora.org>