ofpathname: Enable non-pseries platforms
ofpathname: Enable non-pseries platforms

There are some non-pseries platforms that can (and do) use
the ofpathname script. This patch updates pseries_platform
check in ofpathname to allow for unknown platforms.

Signed-off-by: Nathan Fontenot <4b7bfe500077bf77c5456931a34b0b70e36e0bc6@linux.vnet.ibm.com>
Reviewed-by: Aruna Balakrishnaiah <ab969200bf8a209ae3a660c857a29117d9771707@linux.vnet.ibm.com>

kamalesh-babulal/powerpc-utils,kamalesh-babulal/powerpc-utils,mdroth/powerpc-utils,leitao/powerpc-ibm-utils-debian,leitao/powerpc-ibm-utils-debian,leitao/powerpc-ibm-utils-debian,mdroth/powerpc-utils,shenki/powerpc-utils,shenki/powerpc-utils,shenki/powerpc-utils,mdroth/powerpc-utils,kamalesh-babulal/powerpc-utils