Bluetooth: controller: Fix missing reset of direct adv state
Bluetooth: controller: Fix missing reset of direct adv state

Fix missing implementation to reset the advertiser state
when directed advertisements stop without a connection being
established.

Signed-off-by: Vinayak Kariappa Chettimada <e780c9f87dc729ad454f47292ad82c8652353064@nordicsemi.no>

holtmann/zephyr,runchip/zephyr-cc3220,fractalclone/zephyr-riscv,rsalveti/zephyr,ldts/zephyr,holtmann/zephyr,explora26/zephyr,Vudentz/zephyr,runchip/zephyr-cc3220,nashif/zephyr,ldts/zephyr,punitvara/zephyr,zephyriot/zephyr,GiulianoFranchetto/zephyr,fbsder/zephyr,fbsder/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,sharronliu/zephyr,rsalveti/zephyr,nashif/zephyr,fractalclone/zephyr-riscv,fbsder/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,nashif/zephyr,zephyriot/zephyr,GiulianoFranchetto/zephyr,mbolivar/zephyr,zephyrproject-rtos/zephyr,kraj/zephyr,finikorg/zephyr,runchip/zephyr-cc3220,galak/zephyr,kraj/zephyr,runchip/zephyr-cc3220,kraj/zephyr,Vudentz/zephyr,fractalclone/zephyr-riscv,ldts/zephyr,sharronliu/zephyr,GiulianoFranchetto/zephyr,rsalveti/zephyr,aceofall/zephyr-iotos,sharronliu/zephyr,finikorg/zephyr,GiulianoFranchetto/zephyr,punitvara/zephyr,galak/zephyr,sharronliu/zephyr,fbsder/zephyr,kraj/zephyr,ldts/zephyr,fractalclone/zephyr-riscv,explora26/zephyr,mbolivar/zephyr,holtmann/zephyr,zephyrproject-rtos/zephyr,aceofall/zephyr-iotos,Vudentz/zephyr,aceofall/zephyr-iotos,finikorg/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,ldts/zephyr,fractalclone/zephyr-riscv,kraj/zephyr,punitvara/zephyr,zephyriot/zephyr,galak/zephyr,Vudentz/zephyr,runchip/zephyr-cc3220,finikorg/zephyr,explora26/zephyr,punitvara/zephyr,explora26/zephyr,nashif/zephyr,zephyriot/zephyr,mbolivar/zephyr,mbolivar/zephyr,zephyriot/zephyr,explora26/zephyr,holtmann/zephyr,rsalveti/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,fbsder/zephyr,galak/zephyr,finikorg/zephyr,Vudentz/zephyr,aceofall/zephyr-iotos,holtmann/zephyr,nashif/zephyr,rsalveti/zephyr,sharronliu/zephyr,mbolivar/zephyr