Bluetooth: OTS: Use out-of-range value for unknown object ID
Bluetooth: OTS: Use out-of-range value for unknown object ID

Use a value for "Unknown object ID" that is outside of the range of
valid object IDs.

Signed-off-by: Asbjørn Sæbø <79238bdce2d54e50328756ad5a8d04b51bb621fe@nordicsemi.no>

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