LE: Register for service change indication

Some bonded remote devices require the client to register for service
change indication and actually set the client configuration descriptor
before service change indications can be removed.

This change add an additional step after device bonding has occured to
register for service change indication if possible.

Bug: 18173911
Change-Id: I25386faec0d58834ee2b0a9d1db2d2e052311264