Splitting on fixed number of colons breaks in this case :
Disk.Bay.0:Enclosure.Internal.0-1:RAID.Integrated.1-1
Disk.Bay.1:Enclosure.Internal.0-1:RAID.Integrated.1-1
Disk.Bay.2:Enclosure.Internal.0-1:RAID.Integrated.1-1
Disk.Bay.3:Enclosure.Internal.0-1:RAID.Integrated.1-1
Disk.Direct.4:RAID.Integrated.1-1
Disk.Direct.5:RAID.Integrated.1-1
Split from right instead, doesn't fail
Partial-Bug: #1586545
Change-Id: Ib4ca517388c48ade321451cb8af07abb731e5940