Choose which IRQ to EOI

We should be able to choose which IRQ we want to end when sending EOI.

changed milestone to %Initial Kernel

added Feature Functionality Hardware labels

assigned to @bslathi19

mentioned in issue #9 (closed)

Is this really necessary though? Whenever an interrupt occurs, it will trigger the interrupt handler which will read the irq num. When we send an EOI, it will be the same irq num that will be EOI'd. So why do we need to specify it? We are only handling one interrupt at a time.

unassigned @bslathi19