intc: loapic: convert DEVICE_DEFINE to DEVICE_DT_INST_DEFINE

Convert DEVICE_DEFINE to DEVICE_DT_INST_DEFINE, this allows the build
system to track the device dependencies and ensure that the interrupt
controller is initialized before other devices using it.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
1 file changed