Bug 979785 - [GAIA][BUILD SYSTEM] Overwrite common-setting.json by GAIA_DEVICE_TYPE in build/settings.js
Merge pull request #18974 from mpizza/bug_979785_overwrite_settings_by_device_type

Bug 979785 - [GAIA][BUILD SYSTEM] Overwrite common-setting.json by GAIA_DEVICE_TYPE in build/settings.js. r=yurenju.