net: tftpput: Support selecting get/put for tftp

TftpStart should support starting either a get or a put.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/net.h b/include/net.h
index 495f60e..b408dea 100644
--- a/include/net.h
+++ b/include/net.h
@@ -367,7 +367,7 @@
 
 enum proto_t {
 	BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP,
-	TFTPSRV
+	TFTPSRV, TFTPPUT
 };
 
 /* from net/net.c */