Xattr is not getting marked as arch-dependent.
Xattr is not getting marked as arch-dependent.

Enforce that xattr is really arch-dependent even if building
the rpm somehow says it is not (which seems to be happening).

Change-Id: Ia4c3fdc71754a04e3501550579e9640589a4be3a

mc2014/anvil,stackforge/anvil,mc2014/anvil,stackforge/anvil