TT#38454 Depends on 'bridge-utils' directly in ngcp-nth-*

In the past the package was installed by deployment.sh on
CE/PRO/Carrier during debootstrap stage and was missing
in case of direct installation by ngcp-installer.
Move dependency here to support bridge / vlan on PRO/Carrier
systems installed without deployment.sh (like Amazon EC2 systems).

Change-Id: Ibe876159866735ffb4f58702b5f7da60a6e81fcc

debian/control

@@ -162,6 +162,7 @@ Depends:
  aptitude,
  bind9-host | host,
  bootlogd,
+ bridge-utils,
  debian-goodies,
  dstat,
  etckeeper,
@@ -209,6 +210,7 @@ Depends:
  aptitude,
  bind9-host | host,
  bootlogd,
+ bridge-utils,
  debian-goodies,
  dstat,
  etckeeper,