openvswitch: bump to version 2.11.0

The following patches are in upstream now

	0100-netdev-linux-Use-unsigned-int-for-ifi_flags.patch
	0103-ovs-ctl-fix-setting-hostname.patch
	0106-ovs-save-compatible-with-busybox-ip-command.patch
	0107-datapath-use-KARCH-when-building-linux-datapath-modu.patch

As for 0001-musl-compatibility.patch, the net/if_packet.h part does not
apply anymore.  And musl is not relevant as we use libatomic from gcc

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

net/openvswitch/patches/0003-ovs-lib-fix-install_dir.patch

@@ -0,0 +1,28 @@
+From b476094a64213da20f88976d7562cb4e8d9f2101 Mon Sep 17 00:00:00 2001
+From: Yousong Zhou <yszhou4tech@gmail.com>
+Date: Wed, 14 Mar 2018 16:44:13 +0800
+Subject: [PATCH 3/4] ovs-lib: fix install_dir()
+
+The command "install" is not available in OpenWrt by default
+
+Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
+---
+ utilities/ovs-lib.in | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/utilities/ovs-lib.in b/utilities/ovs-lib.in
+index 9a0af2e82..68ab3f250 100644
+--- a/utilities/ovs-lib.in
++++ b/utilities/ovs-lib.in
+@@ -159,7 +159,10 @@ install_dir () {
+     [ "${OVS_USER##*:}" != "" ] && INSTALL_GROUP="${OVS_USER##*:}"
+ 
+     if test ! -d "$DIR"; then
+-        install -d -m "$INSTALL_MODE" -o "$INSTALL_USER" -g "$INSTALL_GROUP" "$DIR"
++        mkdir -p "$DIR"
++        chmod "$INSTALL_MODE" "$DIR"
++        chown "$INSTALL_USER" "$DIR"
++        chgrp "$INSTALL_GROUP" "$DIR"
+         restorecon "$DIR" >/dev/null 2>&1
+     fi
+ }