* [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
* [Device] Rename SKU Arista-7260CX3-64 to Arista-7260CX3-C64
Renaming to add the speed indication: C64 means 64 100G ports.
renamed: Arista-7260CX3-64/port_config.ini -> Arista-7260CX3-C64/port_config.ini
renamed: Arista-7260CX3-64/sai.profile -> Arista-7260CX3-C64/sai.profile
* [Arista-7260cx3] Fix 64x100G port_config.ini
Reorder the port lanes to match the front panel port numbering.
* [Arista-7260CX3] add hwSKU Arista-7260CX3-D108C8
This hwSKU has 108x50G ports and 8x100G ports (2 x 100G ports are unused)
