Bluetooth: Add semaphore for counting controller-side ACL buffers

We shouldn't be sending more ACL packets to the controller than it
is capable of accepting. This patch adds a semaphore to track the
number of available controller-side ACL buffers.

Change-Id: Ib280afa06aade68eee03e44e33624eebb700dad5
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2 files changed