Add new attributes "chid" and "chid_external" to the channel-path
sysfs directory. These attributes contain information related to
the channel-ID of the channel-path.
Reviewed-by: NSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>