ARM: clean up per-processor check_bugs method call

Call the per-processor type check_bugs() method in the same way as we
do other per-processor functions - move the "processor." detail into
proc-fns.h.

Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

arch/arm/kernel/bugs.c

@@ -6,8 +6,8 @@
 void check_other_bugs(void)
 {
 #ifdef MULTI_CPU
-	if (processor.check_bugs)
-		processor.check_bugs();
+	if (cpu_check_bugs)
+		cpu_check_bugs();
 #endif
 }