[nancy][gros] add exception for network firmware version of gros-1 (to be reverted)

Author: Patrice RINGOT

lib/refrepo/valid/data/homogeneity.yaml.erb

@@ -72,6 +72,8 @@ nancy:
   gros-[1-2]:
     - ~bios.release_date
     - ~bios.version
+    - ~network_adapters.eth0.firmware_version
+    - ~network_adapters.eth1.firmware_version
   gros-[8-10]:
     - ~operating_system.pstate_driver
     - ~operating_system.pstate_governor