[IA64] fix build warning: argument 1 of 'irqd_irq_disabled'

In commit f5e5bf08
  ia64: Use irqd_irq_disabled() instead of desc->status access

Thomas forgot to convert from irq to *irq_data.

Add a call to irq_get_irq_data() to fix that.

Signed-off-by: Tony Luck <tony.luck@intel.com>