m68k: amiga: Add linux/irq.h to make it compile again
m68k: amiga: Add linux/irq.h to make it compile again

The removal of linux/irq.h from kernel_stat.h causes 

 arch/m68k/amiga/cia.c:171: error: 'handle_simple_irq' undeclared

Reported-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>
Signed-off-by: Thomas Gleixner <00e4cf8f46a57000a44449bf9dd8cbbcc209fd2a@linutronix.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs