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

MAINTAINERS

@@ -11435,6 +11435,7 @@ S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
 F:	Documentation/core-api/irq/irq-domain.rst
 F:	include/linux/irqdomain.h
+F:	include/linux/irqdomain_defs.h
 F:	kernel/irq/irqdomain.c
 F:	kernel/irq/msi.c
 
@@ -11444,6 +11445,10 @@ L:	linux-kernel@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
 F:	include/linux/group_cpus.h
+F:	include/linux/irq.h
+F:	include/linux/irqhandler.h
+F:	include/linux/irqnr.h
+F:	include/linux/irqreturn.h
 F:	kernel/irq/
 F:	lib/group_cpus.c
 
@@ -11454,6 +11459,7 @@ S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
 F:	Documentation/devicetree/bindings/interrupt-controller/
 F:	drivers/irqchip/
+F:	include/linux/irqchip.h
 
 ISA
 M:	William Breathitt Gray <william.gray@linaro.org>