tests: Bluetooth: cte_req: Enable not used test case
tests: Bluetooth: cte_req: Enable not used test case

There was a test case that was never executed. It was not
added to a test suite in test_main. The commit adds the
test case.

Signed-off-by: Piotr Pryga <4cae3388a6c6e480df2109bb21aa832bf2c59595@nordicsemi.no>

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