intc: gic: Don't enable the interrupt routing to cores disable in DT
intc: gic: Don't enable the interrupt routing to cores disable in DT

Change to use macro DT_FOREACH_CHILD_STATUS_OKAY to avoid routing the
interrupts to the disabled cores.

Signed-off-by: Hou Zhiqiang <6c0c8902386def638715cb5c29c831cf16ec8aa4@nxp.com>

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