genirq: Update MAINTAINERS to include interrupt related header files

Interrupt related header files seems orphaned, add them to the respective
subsystem records.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240405185726.3931703-2-andriy.shevchenko@linux.intel.com