Fix included service handling

GattService.addService have a bug causing 0 to be always passed as
included service handle.

This issue was introduced in commit
05405f01802e6b5210575ad348ca441edb5cfb8b

Bug: 65637368
Test: manual
Change-Id: Idfe65cba65f26e704589dc4083767bebc691f007
2 files changed