genirq: Fix trivial typo in the comment CPY ==> COPY

IRQ_SET_MASK_NOCOPY is defined with 'O' letter. Fix the comment.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240405185726.3931703-3-andriy.shevchenko@linux.intel.com

include/linux/irq.h

@@ -115,7 +115,7 @@ enum {
  * Return value for chip->irq_set_affinity()
  *
  * IRQ_SET_MASK_OK	- OK, core updates irq_common_data.affinity
- * IRQ_SET_MASK_NOCPY	- OK, chip did update irq_common_data.affinity
+ * IRQ_SET_MASK_NOCOPY	- OK, chip did update irq_common_data.affinity
  * IRQ_SET_MASK_OK_DONE	- Same as IRQ_SET_MASK_OK for core. Special code to
  *			  support stacked irqchips, which indicates skipping
  *			  all descendant irqchips.