powerpc/mpic: Put "pic-no-reset" test back into the MPIC code

There's not really any reason to have this one-liner in a separate
static inline function, given that all the other similar tests are
already in the alloc_mpic() code.
Signed-off-by: NKyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/sysdev/mpic.c

@@ -1118,11 +1118,6 @@ static struct irq_host_ops mpic_host_ops = {
 	.xlate = mpic_host_xlate,
 };
 
-static int mpic_reset_prohibited(struct device_node *node)
-{
-	return node && of_get_property(node, "pic-no-reset", NULL);
-}
-
 /*
  * Exported functions
  */
@@ -1272,7 +1267,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	/* When using a device-node, reset requests are only honored if the MPIC
 	 * is allowed to reset.
 	 */
-	if (mpic_reset_prohibited(node))
+	if (of_get_property(node, "pic-no-reset", NULL))
 		mpic->flags |= MPIC_NO_RESET;
 
 	if ((flags & MPIC_WANTS_RESET) && !(mpic->flags & MPIC_NO_RESET)) {