logging: fix msg2 creation in __LOG_VA
logging: fix msg2 creation in __LOG_VA

This commit fixes invoking of z_log_msg2_runtime_vcreate with wrong
param. This function requires to be called with dynamic or static
source based on CONFIG_LOG_RUNTIME_FILTERING.

Signed-off-by: Przemyslaw Bida <a50c93f369fde5722836c96336399b0b25c1b4ec@nordicsemi.no>

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