[PATCH] fault-injection: stacktrace filtering kconfig fix

`select' doesn't work very well.  With alpha `make allmodconfig' we end up
with CONFIG_STACKTRACE enabled, so we end up with undefined save_stacktrace()
at link time.

Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Don Mullis <dwm@meer.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

lib/Kconfig.debug

@@ -417,7 +417,7 @@ config LKDTM
 config FAULT_INJECTION
 	bool "Fault-injection framework"
 	depends on DEBUG_KERNEL
-	select STACKTRACE
+	depends on STACKTRACE
 	select FRAME_POINTER
 	help
 	  Provide fault-injection framework.