tests: Bluetooth: bsim: Add ll_adv_aux_set_remove function
tests: Bluetooth: bsim: Add ll_adv_aux_set_remove function

Add tests for ll_adv_aux_set_remove in bsim test app

Signed-off-by: Dag Bjarvin <917dd1fe1aa88631d3376f7f36399a70b6f2c933@nordicsemi.no>

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