[Android] Fix core shell crash issue after rebasing to Chromium35

icu_use_data_file_flag has been enabled on Android after Chromium35.
Need to package icudtl.dat resource.

TODO:
1. It will also be crashed on Shared mode, caused by application context issue.
2. CoreShell will be crashed when exit. Will track with XWALK-1366.

BUG=XWALK-1358