net: Remove <common.h> and add needed includes

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 151bc55..1943de8 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -4,12 +4,12 @@
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  */
 
-#include <common.h>
 #include <command.h>
 #include <env.h>
 #include <log.h>
 #include <stdio_dev.h>
 #include <net.h>
+#include <vsprintf.h>
 
 #ifndef CFG_NETCONSOLE_BUFFER_SIZE
 #define CFG_NETCONSOLE_BUFFER_SIZE 512