fix lua cflags

SVN-Revision: 10971

package/lua/Makefile

@@ -94,7 +94,7 @@ define Build/Compile
 		AR="$(TARGET_CROSS)ar rcu" \
 		RANLIB="$(TARGET_CROSS)ranlib" \
 		INSTALL_ROOT=/usr \
-		MYCFLAGS="$(TARGET_CPPFLAGS) $(TARGET_CFLAGS)" \
+		CFLAGS="$(TARGET_CPPFLAGS) $(TARGET_CFLAGS)" \
 		MYLDFLAGS="$(TARGET_LDFLAGS)" \
 		PKG_VERSION=$(PKG_VERSION) \
 		all linux