oe-git-proxy: use SOCKS4a instead of SOCKS4

In some situations where a proxy is required the client can't even do DNS
lookups, so instead of using SOCKS4 use SOCKS4a which moves the name resolution
from the client to the proxy.

(From OE-Core rev: 984455a95b4302d527ff54e019d8ed00611f3664)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/oe-git-proxy

@@ -121,7 +121,7 @@ if [ "$PROTO" = "socks" ]; then
 	if [ -z "$PORT" ]; then
 		PORT="1080"
 	fi
-	METHOD="SOCKS4:$PROXY:$1:$2,socksport=$PORT"
+	METHOD="SOCKS4A:$PROXY:$1:$2,socksport=$PORT"
 else
 	# Assume PROXY (http, https, etc)
 	if [ -z "$PORT" ]; then