Fix ZoneInfoDBTest on devices that have taken a gservices tzdata update.

The tests were assuming that the zygote was always using the
/system/usr/share/zoneinfo copy, but devices that have taken a gservices tzdata
update will be using the /data/misc/zoneinfo/tzdata copy instead.

Bug: 11513357

(cherry picked from commit e086850abf2726d5b5af1d9286fdb32f7146fad3)

Change-Id: If9047a0678efb7bcfe0838cbe602a9c906e1f907
1 file changed