Set neutron OCF scripts umask to 0022

For some reason pacemaker sets umask to 0026
which leads to 0751 rights set for neutron
agents scripts, which in turn create
some of files with these rights set, which
in turn can make metadata proxy process
unmanagable, making router hang.

Change-Id: I146f96c2215aff95af9fd53682f501f3a1b90349
Closes-bug: #1392330
Related-bug: #1397284