ofpathname: Convert OF format to logical device for virtio-scsi devices
ofpathname: Convert OF format to logical device for virtio-scsi devices

Add support to convert a Open Firmware device path to logical
device path for virtio scsi device.

Signed-off-by: Aruna Balakrishnaiah <ab969200bf8a209ae3a660c857a29117d9771707@linux.vnet.ibm.com>

shenki/powerpc-utils,mdroth/powerpc-utils,shenki/powerpc-utils,shenki/powerpc-utils,kamalesh-babulal/powerpc-utils,mdroth/powerpc-utils,kamalesh-babulal/powerpc-utils,mdroth/powerpc-utils,kamalesh-babulal/powerpc-utils