imx: riotboard, marsboard: Enable thermal support

Signed-off-by: Nikolay Dimitrov <picmaster@mail.bg>
diff --git a/include/configs/embestmx6boards.h b/include/configs/embestmx6boards.h
index e9f5bed..16b5826 100644
--- a/include/configs/embestmx6boards.h
+++ b/include/configs/embestmx6boards.h
@@ -36,6 +36,7 @@
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
 #define CONFIG_REVISION_TAG
+#define CONFIG_IMX6_THERMAL
 
 /* Size of malloc() pool */
 #define CONFIG_SYS_MALLOC_LEN		(10 * SZ_1M)