kmemcheck: depend on HAVE_ARCH_KMEMCHECK

to make it selectable if it is available.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
diff --git a/lib/Kconfig.kmemcheck b/lib/Kconfig.kmemcheck
index 603c81b..846e039 100644
--- a/lib/Kconfig.kmemcheck
+++ b/lib/Kconfig.kmemcheck
@@ -1,6 +1,8 @@
 config HAVE_ARCH_KMEMCHECK
 	bool
 
+if HAVE_ARCH_KMEMCHECK
+
 menuconfig KMEMCHECK
 	bool "kmemcheck: trap use of uninitialized memory"
 	depends on DEBUG_KERNEL
@@ -89,3 +91,4 @@
 	  accesses where not all the bits are initialized at the same time.
 	  This may also hide some real bugs.
 
+endif