Linaro 4.8 fixes

Change-Id: I1711655670bfabfe6b2faffcd143d174fe73602b
net/bluetooth/hci_conn.c: GCC 4.8.x fix up again

Change-Id: Ib5e1669a14b286dac34e6340949bee732aea9674
Signed-off-by: Paul Reioux <reioux@gmail.com>