arm: imx6: tqma6: add kconfig to board header

this is needed later to have Kconfig generated
stuff as define.

Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
diff --git a/include/configs/tqma6.h b/include/configs/tqma6.h
index 00294f6..aa19f11 100644
--- a/include/configs/tqma6.h
+++ b/include/configs/tqma6.h
@@ -9,6 +9,7 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <linux/kconfig.h>
 /* SPL */
 /* #if defined(CONFIG_SPL_BUILD) */