lib/Kconfig.debug: Fix typo in select statement

Commit 484f29c7430b3 ("bug: Provide toggle for BUG on data corruption")
added a Kconfig select statement on CONFIG_DEBUG_LIST, but the CONFIG_
prefix is only used in Make and C(PP) syntax.  Remove the CONFIG_ prefix
to correctly select the Kconfig option DEBUG_LIST.
Signed-off-by: NValentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: NKees Cook <keescook@chromium.org>

lib/Kconfig.debug

@@ -1962,7 +1962,7 @@ config TEST_STATIC_KEYS
 
 config BUG_ON_DATA_CORRUPTION
 	bool "Trigger a BUG when data corruption is detected"
-	select CONFIG_DEBUG_LIST
+	select DEBUG_LIST
 	help
 	  Select this option if the kernel should BUG when it encounters
 	  data corruption in kernel memory structures when they get checked