In some cases, hcitool is denied net_admin capability, however, it
does not prevent the underlying bluetooth test to execute properly.
When this happens the following apparmor error is logged:
apparmor=DENIED operation=capable
	profile=/usr/bin/hcitool pid=796 comm=hcitool
	capability=12 capname=net_admin
This patch adds this error to the list of alternative happy endings.

Signed-off-by: Frédéric Dalleau <frederic.dalleau@collabora.com>