drivers: espi: xec: mec172x: Handle eSPI bus host enable
drivers: espi: xec: mec172x: Handle eSPI bus host enable

Add eSPI bus host enable/disable events from eSPI host.

Signed-off-by: Jose Alberto Meza <93346bcba00086196ffe58e37d7adff1143c3f07@intel.com>

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