module_param: make bool parameters really bool (core code)

module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index dc813a9..611cd60 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -325,7 +325,7 @@
 	desc->irqs_unhandled = 0;
 }
 
-int noirqdebug __read_mostly;
+bool noirqdebug __read_mostly;
 
 int noirqdebug_setup(char *str)
 {