kern/sys: Add NFSv4 client

Update #4475

buildset/default.ini

@@ -40,6 +40,8 @@ dhcpcd = on
 dpaa = on
 evdev = on
 fdt = on
+fs_nfs = on
+fs_nfsclient = on
 imx = on
 in_cksum = on
 mdnsresponder = on
@@ -50,14 +52,15 @@ net80211 = off
 netinet = on
 netinet6 = on
 netipsec = off
-nfsv2 = on
-rpc = on
+nfsv2 = off
+nfs = on
 nvme = on
 opencrypto = on
 pci = on
 pf = on
 regulator = on
-rpc_user = on
+rpc = on
+rpc_user = off
 rtems = on
 tests = on
 tty = on

buildset/nfsv2.ini

@@ -0,0 +1,13 @@
+#
+# The configuration to build legacy NFSv2 client
+#
+
+[general]
+name = nfsv2
+extends = default.ini
+
+[modules]
+nfsv2 = on
+rpc_user = on
+fs_nfs = off
+fs_nfsclient = off