kconfig: allow loading multiple configurations

Extend conf_read_simple() so it can load multiple configurations.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 043859d..998cf4f 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -92,10 +92,14 @@
 #define SYMBOL_OPTIONAL		0x0100
 #define SYMBOL_WRITE		0x0200
 #define SYMBOL_CHANGED		0x0400
-#define SYMBOL_NEW		0x0800
 #define SYMBOL_AUTO		0x1000
 #define SYMBOL_CHECKED		0x2000
 #define SYMBOL_WARNED		0x8000
+#define SYMBOL_DEF		0x10000
+#define SYMBOL_DEF_USER		0x10000
+#define SYMBOL_DEF2		0x20000
+#define SYMBOL_DEF3		0x40000
+#define SYMBOL_DEF4		0x80000
 
 #define SYMBOL_MAXLENGTH	256
 #define SYMBOL_HASHSIZE		257