[Blackfin] arch: pull in linux/etherdevice.h for random_ether_addr() used in bfin_get_ether_addr()

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

arch/blackfin/mach-bf537/boards/cm_bf537.c

@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>

arch/blackfin/mach-bf537/boards/generic_board.c

@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>

arch/blackfin/mach-bf537/boards/pnav10.c

@@ -29,6 +29,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/etherdevice.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>