ffs: Add installation dependency on nfs-utils

Signed-off-by: Euan Harris <euan.harris@citrix.com>
Merge pull request #158 from euanh/build-improvements

ffs: Add installation dependency on nfs-utils
Fixing xcp-networkd SPEC file so that xcp-networkd-bridge-conf is copied and modprobe.d dir is created
Merge pull request #159 from amesserl/fix_networkd

Fixing xcp-networkd SPEC file so that xcp-networkd-bridge-conf is copied
ffs: Fix typo

Signed-off-by: Euan Harris <euan.harris@citrix.com>
Merge pull request #162 from euanh/master

ffs: Fix typo
Merge pull request #160 from euanh/build-improvements

ffs: Add installation dependency on nfs-utils