* [test] Adding Broadcom configuration file test
In order to allow SONiC community to check in Broadcom configuration
file directly under device folder. We need to add this test to make
sure the contents of the configuration is compliant with Broadcom
specifications.
* Invoke test from Debian package builder
* Use $() syntax
* Remove the debug echo statement
( All device-specific files now reside under /device directory in a <vendor-name>/<platform-string>/<hardware-SKU> directory structure in repo.
* Device-specific files are now packaged into a Debian package (sonic-device-data) and are now installed to /usr/share/sonic/device/<platform-string>/<hardware-SKU>/ directory on switch.
