Add Environment call: get config dir for some user
Add Environment call: get config dir for some user

This returns a read-only directory accessible to any app running as the
same user, containing various configuration files written by the system.

Change-Id: I635de184fc285b8fef166b782bbc1ac79f8f0687

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base