Add support for cciss p seperator in ceph-osd fact

the facter code was subsituting the ! in the cciss device, but had forgotten
 about the p seperator between the device and partation number.

the patch adds the p seperator if the ! is matched in the gsub to the remaining
 locations that would need the p seperator to properly refrence devices.

Change-Id: I5054cde345495b62fa66f3ae3876fc6eb098cc5c
Closes-bug: 1381218