Also create /dev/disk/by-id/wwn-0x..-part%n symlinks for partitions

 # ls -l /dev/disk/by-id/wwn-0x500
 wwn-0x500000e01b83f360        wwn-0x50014ee25578924f-part1
 wwn-0x500000e01b83f440        wwn-0x50014ee25578924f-part2
 wwn-0x500000e01b83f520        wwn-0x50014ee2aabdc41b
 wwn-0x500000e01b843d90        wwn-0x50014ee2aabdc41b-part1
 wwn-0x5000c50016359fd1        wwn-0x50014ee2aabdc41b-part2
 wwn-0x50014ee0016eb4f5        wwn-0x5001517958cabd77
 wwn-0x50014ee0016eb572        wwn-0x5001517958cabd77-part1
 wwn-0x50014ee055d524e2        wwn-0x5001517958cabd77-part2
 wwn-0x50014ee055d524e2-part1  wwn-0x5001517958d6a74e
 wwn-0x50014ee055d524e2-part2  wwn-0x5001517958d6a74e-part1
 wwn-0x50014ee1003d9c50        wwn-0x5001517958d6a74e-part2
 wwn-0x50014ee1003d9c50-part1  wwn-0x50024e9200c0c693
 wwn-0x50014ee1003d9c50-part2  wwn-0x50024e9200c0c694
 wwn-0x50014ee1aac30d4e        wwn-0x50024e9200c0c6ae
 wwn-0x50014ee1aac30d4e-part1  wwn-0x50024e9200c0c6af
 wwn-0x50014ee1aac30d4e-part2  wwn-0x50024e9200c0c6b0
 wwn-0x50014ee25578924f        wwn-0x50024e9200c0c6b1

Signed-off-by: David Zeuthen <davidz@redhat.com>