Move ICU .dat

Move the symlink destination of /system/usr/icu from Runtime APEX to
i18n APEX

Bug: 137009149
Test: Device boots
Change-Id: I86ff83a28d4124892d2b5d84ff09bc539f76c941
diff --git a/rootdir/init.environ.rc.in b/rootdir/init.environ.rc.in
index 455c9a8..93b7f43 100644
--- a/rootdir/init.environ.rc.in
+++ b/rootdir/init.environ.rc.in
@@ -6,6 +6,7 @@
     export ANDROID_DATA /data
     export ANDROID_STORAGE /storage
     export ANDROID_RUNTIME_ROOT /apex/com.android.runtime
+    export ANDROID_I18N_ROOT /apex/com.android.i18n
     export ANDROID_TZDATA_ROOT /apex/com.android.tzdata
     export EXTERNAL_STORAGE /sdcard
     export ASEC_MOUNTPOINT /mnt/asec