Android: Keep track of peripheral advertisement errors

If advertisement fails then we drop back into the unconnected state
and provide a more detailed error message for individual advertisement
errors.

Change-Id: Ic9de02b456409cd1a2dec11e53c884fe368ae267
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>