Move APEX module tz files under etc/tz

The same prebuilts will be used in both runtime and time zone
modules. Having the rules put the files in etc/tz/ will make
them more appropriate for the runtime module.

Bug: 119026403
Test: build /boot only
Change-Id: If0e5b0c739573c9186ee3fdf30eca31a06304e55
1 file changed