Disable sweep2wake while calling.
This works around problem of spurious touch events when sweep2wake is active and proxmity sensor turns screen off.
Restore sweep2wake after releasing wakelock. Hopefully this will further minimize possibility of touch screen freezes.
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1
Merge branch 'cm-10.1' of git://github.com/Team-Hydra/android_packages_apps_Phone into cm-10.1