Extend mssb role to include update interface commands.
Extend mssb role to include update interface commands.

Addresses-Issue: Jira/AQUILON-1479
Change-Id: If8b89d8f3031f83a4333504e5eb03d449c412a21
Reviewed-by: Gabor Gombas <3bb8c49439d9d044594e1c6967f991d0b4248a64@morganstanley.com>

guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,guillaume-philippon/aquilon,quattor/aquilon,quattor/aquilon