tests: net: Test resolving literal IPv6 addresses
tests: net: Test resolving literal IPv6 addresses

This patch adds a test for the network address resolver module
that verifies resolving literal IPv6 addresses.

Signed-off-by: Hubert Miś <a91fd59c670965fa0579dbce0eafdaab862c821f@nordicsemi.no>

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