Bug 989470 - Fix MCC/MNC dual SIM detection in Marketplace app

https://bugzilla.mozilla.org/show_bug.cgi?id=989470

The packaged app (`application.zip`) has been updated for these line changes to fix the dual SIM detection (bug 988677) used by the Marketplace for serving carrier- and region-specific content:

https://github.com/mozilla/fireplace/commit/fa7deb0#diff-1

r? @fabricedesre