Fixes build failure on fieldtest:
| install: cannot stat 'locale-json/so-SO/vdc-gtin-7640156794588.json': No such file or directory | make[2]: *** [Makefile:1005: tx-install] Error 1
Indeed the file locale-json/so-SO/vdc-gtin-7640156794588.json did not exist in the dss-mainline repo.