sm: Store bond information of pairing

The number PERSIST_NUM_TYPE_SM_BOND is defined but not yet stored
anywhere. This adds storing PERSIST_NUM_TYPE_SM_BOND when pairing Phase
2 is complete (Pairing Random is exchanged).

BUG=chromium:805112
TEST=Tested manual pairing with LE mouse

Change-Id: Ibbd638a5e8f52778a4fdb03e0e7a13c24dce5187
Reviewed-on: https://chromium-review.googlesource.com/1509872
Commit-Ready: Sonny Sasaka <sonnysasaka@chromium.org>
Tested-by: Sonny Sasaka <sonnysasaka@chromium.org>
Reviewed-by: Dmitry Grinberg <dmitrygr@google.com>
1 file changed