Bluetooth: controller: Fix DLE event on PHY update
Bluetooth: controller: Fix DLE event on PHY update

Fix HCI Data Length Update event generation on PHY update
procedure, i.e. preserve Data Length Parameters on PHY
update.

Fixes BT LL.TS.5.1.1 tests:
LL/CON/MAS/BV-126-C
LL/CON/MAS/BV-127-C
LL/CON/SLA/BV-129-C
LL/CON/SLA/BV-130-C

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

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