Added compile define for ppc64 archs
Added compile define for ppc64 archs

Signed-off-by: Steve Dickson <305cc9d5027c0f4e08c2697d4cabde07a8221669@redhat.com>

Distrotech/libtirpc,Distrotech/libtirpc,sswen/ntirpc,Distrotech/libtirpc,sswen/ntirpc