Bluetooth: tester: Add directed adv support
Bluetooth: tester: Add directed adv support

GAP/CONN/DCON/BV-01-C test case needs directed advertising
support.

Signed-off-by: Ilhan Ates <dfb2f2eda04d4d9d9e58039751fb26dcf478da6a@nordicsemi.no>

finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr