Bluetooth: SMP: Handle security request from slave

If sufficently strong key exists enable encryption. If no key is
present or key doesn't meet auth requirements start pairing.

Change-Id: I50be66f895d02dbbce49290c21bbc445ab734b4b
Signed-off-by: Szymon Janc <szymon.janc@tieto.com>
2 files changed