Migrate keychain directories to /data/misc/user/0

With new CA certificates being stored in /data/misc/user/<userid>/
existing ones need to be moved into the same place.

After this update only the owner user will have custom trusted CAs; all
other users will revert to the default set.

Change-Id: I14a4cd6048685902ad5dd3b53494b03fadc41c04
1 file changed