i.MX6: mx6qsabrelite: add cache commands if cache is enabled

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Acked-by: Marek Vasut <marex@denx.de>

include/configs/mx6qsabrelite.h

@@ -214,4 +214,8 @@
 
 #define CONFIG_SYS_DCACHE_OFF
 
+#ifndef CONFIG_SYS_DCACHE_OFF
+#define CONFIG_CMD_CACHE
+#endif
+
 #endif                         /* __CONFIG_H */