Bluetooth: Host: Cancel EATT connection work in att_reset
Bluetooth: Host: Cancel EATT connection work in att_reset

When att->conn is set to NULL in att_reset, EATT connection will fail.

Signed-off-by: Herman Berget <22d956f84c179c5c22821e4925fbb7a703726077@nordicsemi.no>

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