Rootcanal: Exit local loopback mode on HciReset

In Bluetooth code spec v5.1 Vol 2 Part E 7.6.2, it states "the commands
HCI_Reset and HCI_Write_Loopback_Mode can be used to exit Local Loopback
mode".

In HAL cert test, enter local loopback mode, reset, and check whether
local loopback mode.

Test: cert/run_cert.sh
Bug: 131625008
Change-Id: I79546b202affe8ccd48b10e230cf73465324b409