linux-phytec-fsl

pwm: Don't hold pwm_lookup_lock longer than necessary

There is no need to hold pwm_lookup_lock after we're done with looping
over pwm_lookup_list, so release it earlier.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>