lib: os: cbprintf: fix cbprintf_enums include path
lib: os: cbprintf: fix cbprintf_enums include path

Corrects `cbprintf_enums.h` include path to contain
<zephyr/...> prefix.

Signed-off-by: Georgij Cernysiov <bd22e7942bc8beaebb3a0cc77ee92e4585e26366@gmail.com>

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