kconfig: move lxdialog to scripts/kconfig/lxdialog

The only lxdialog user i kconfig - for menuconfig.
So move it to reflect this.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index d1ad405..d63d7fb 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -325,7 +325,7 @@
 	memset(args, 0, sizeof(args));
 	indent = 0;
 	child_count = 0;
-	cprint("./scripts/lxdialog/lxdialog");
+	cprint("./scripts/kconfig/lxdialog/lxdialog");
 	cprint("--backtitle");
 	cprint(menu_backtitle);
 }