irq: change ->set_affinity() to return status, fix
irq: change ->set_affinity() to return status, fix

This build failure:

 arch/powerpc/sysdev/mpic.c:810: error: conflicting types for 'mpic_set_affinity'
 arch/powerpc/sysdev/mpic.h:39: error: previous declaration of 'mpic_set_affinity' was here
 make[2]: *** [arch/powerpc/sysdev/mpic.o] Error 1
 make[2]: *** Waiting for unfinished jobs....

Triggers because the function prototype was not updated when the
function call signature got changed by:

   d5dedd4: irq: change ->set_affinity() to return status

[ Impact: build fix on powerpc ]

Cc: Benjamin Herrenschmidt <a7089bb6e7e92505d88aaff006cbdd60cc9120b6@kernel.crashing.org>
Cc: Yinghai Lu <0674548f4d596393408a51d6287a76ebba2f42aa@kernel.org>
Cc: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Cc: Rusty Russell <df9728c9e5104131c08c7adb03af425394842596@rustcorp.com.au>
Cc: 0e68804f8106648cbe58ae4eb80dcc80d07b1f67@vger.kernel.org
LKML-Reference: <36cdad7c12e429d118855f553a5ff8fc05e91a99@kernel.org>
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs