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
diff --git a/output_data/Android.bp b/output_data/Android.bp
index 205dd0e..94f4214 100644
--- a/output_data/Android.bp
+++ b/output_data/Android.bp
@@ -16,6 +16,7 @@
     name: "apex_tz_version",
     src: "version/tz_version",
     filename: "tz_version",
+    sub_dir: "tz",
     installable: false,
 }
 
@@ -23,6 +24,7 @@
     name: "apex_tzlookup.xml",
     src: "android/tzlookup.xml",
     filename: "tzlookup.xml",
+    sub_dir: "tz",
     installable: false,
 }
 
@@ -31,6 +33,7 @@
     src: "iana/tzdata",
     notice: "iana/NOTICE",
     filename: "tzdata",
+    sub_dir: "tz",
     installable: false,
 }