DeskClock: Update Polish language

Change-Id: I3e48cd05d6e03f9c79e9d67d416966057eab47a6
Merge "DeskClock: Update Polish language" into cm-10.1
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_packages_apps_DeskClock into cm-10.1