Bluetooth: tests/mesh_shell: Tweak configuration a little bit
Bluetooth: tests/mesh_shell: Tweak configuration a little bit

The generic Bluetooth shell was never intended to be enabled. Also
make the default advertised name a bit nicer.

Signed-off-by: Johan Hedberg <628991c7b0a19c384f9b99c21ec330ce952bb838@intel.com>

zephyrproject-rtos/zephyr,zephyriot/zephyr,punitvara/zephyr,kraj/zephyr,Vudentz/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr,ldts/zephyr,GiulianoFranchetto/zephyr,Vudentz/zephyr,aceofall/zephyr-iotos,Vudentz/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,punitvara/zephyr,zephyrproject-rtos/zephyr,explora26/zephyr,punitvara/zephyr,mbolivar/zephyr,ldts/zephyr,Vudentz/zephyr,explora26/zephyr,finikorg/zephyr,ldts/zephyr,finikorg/zephyr,mbolivar/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,aceofall/zephyr-iotos,kraj/zephyr,nashif/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,Vudentz/zephyr,galak/zephyr,zephyriot/zephyr,kraj/zephyr,kraj/zephyr,aceofall/zephyr-iotos,kraj/zephyr,mbolivar/zephyr,GiulianoFranchetto/zephyr,galak/zephyr,aceofall/zephyr-iotos,explora26/zephyr,ldts/zephyr,zephyriot/zephyr,Vudentz/zephyr,mbolivar/zephyr,nashif/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,mbolivar/zephyr,explora26/zephyr,zephyriot/zephyr,nashif/zephyr,GiulianoFranchetto/zephyr,GiulianoFranchetto/zephyr,galak/zephyr,zephyriot/zephyr,aceofall/zephyr-iotos,ldts/zephyr,punitvara/zephyr