arm: mvebu: Configure ARP timeout and retry count

As some MVEBU platforms using the MVNETA driver seem to miss the
first ARP packet, lets reduce the timeout and increase the retry
count. This increases the speed for communication establishment.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Dirk Eibach <eibach@gdsys.de>

arch/arm/mach-mvebu/include/mach/config.h

@@ -70,6 +70,8 @@
 #define CONFIG_PHYLIB
 #define CONFIG_ENV_OVERWRITE	/* ethaddr can be reprogrammed */
 #define CONFIG_PHY_GIGE		/* GbE speed/duplex detect */
+#define CONFIG_ARP_TIMEOUT	200
+#define CONFIG_NET_RETRY_COUNT	50
 #endif /* CONFIG_CMD_NET */
 
 /*