Frameworks: fix notification cancel on privacy guard

new activity stack from google to handle the shiny new launcher
stuff is running on several instances. That said mPrivacyGuardPackageName
currently does not survive when going from an app into launcher. Make
it static to solve it.

Change-Id: Ic9374d2cc58cb716b086365ab8aa96ffaef44879
update Strings

Change-Id: I5ec0bb8173f456ed5121ea53ad600e9bd4a14e8a
fix con

Change-Id: Ida4a9c52b9c15934501b95fc3c2eb4b236560a9d
update zh-rCN Strings

Change-Id: I0f527572817a2bdb558bb64901885ffe74b468c4