soc/intel_adsp: set default cavs kconfig to cavs platforms only
soc/intel_adsp: set default cavs kconfig to cavs platforms only

This will set intel cavs kconfig to cavs platforms only

Signed-off-by: Adrian Bonislawski <c1526623796a63932b288786ffa521d7fcf07c3a@intel.com>

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