microblaze: Wire up OF support for emaclite

 - expand the condition with CONFIG_OF_CONTROL
Signed-off-by: NStephan Linz <linz@li-pro.net>
Acked-by: NSimon Glass <sjg@chromium.org>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

include/configs/microblaze-generic.h

@@ -71,7 +71,7 @@
 
 /* ethernet */
 #undef CONFIG_SYS_ENET
-#if defined(XILINX_EMACLITE_BASEADDR)
+#if defined(XILINX_EMACLITE_BASEADDR) || defined(CONFIG_OF_CONTROL)
 # define CONFIG_XILINX_EMACLITE	1
 # define CONFIG_SYS_ENET
 #endif