drivers: console: Kconfig: Improve native descriptions
drivers: console: Kconfig: Improve native descriptions

Improve the prompts and help messages for the NATIVE options
to make them less ambigous

Signed-off-by: Alberto Escolar Piedras <52be3174920ed06cbdfbcf9622a1a6c68e942617@oticon.com>

finikorg/zephyr,kraj/zephyr,kraj/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,explora26/zephyr,galak/zephyr,Vudentz/zephyr,explora26/zephyr,Vudentz/zephyr,kraj/zephyr,zephyrproject-rtos/zephyr,punitvara/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,GiulianoFranchetto/zephyr,kraj/zephyr,punitvara/zephyr,explora26/zephyr,ldts/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,ldts/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,zephyrproject-rtos/zephyr,kraj/zephyr,nashif/zephyr,galak/zephyr,Vudentz/zephyr,finikorg/zephyr,nashif/zephyr,finikorg/zephyr,finikorg/zephyr,punitvara/zephyr,punitvara/zephyr,galak/zephyr,Vudentz/zephyr,ldts/zephyr,ldts/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,explora26/zephyr,punitvara/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr,explora26/zephyr,nashif/zephyr