Move PAM configuration to /usr at build time
Move PAM configuration to /usr at build time

A bunch of packages install PAM configuration fragments in /etc. Rather than
modify them all to install into /usr/lib, just move the entire directory at
image build time.

mjg59/scripts,glevand/coreos--scripts,marineam/coreos-scripts,smilart/scripts,smilart/scripts,coreos/scripts,marineam/coreos-scripts,marineam/coreos-scripts,coreos/scripts,mjg59/scripts,glevand/coreos--scripts,smilart/scripts,mjg59/scripts