nfs-kernel-server: update to 2.5.2

Remove uClibc-ng patch as it was upstreamed.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/nfs-kernel-server/patches/102-uclibc-ns-maxmsg.patch

@@ -1,13 +0,0 @@
---- a/support/nfsidmap/libnfsidmap.c
-+++ b/support/nfsidmap/libnfsidmap.c
-@@ -89,6 +89,10 @@ gid_t nobody_gid = (gid_t)-1;
- #define NFS4DNSTXTREC "_nfsv4idmapdomain"
- #endif
- 
-+#ifndef NS_MAXMSG
-+#define NS_MAXMSG 65535
-+#endif
-+
- /* Default logging fuction */
- static void default_logger(const char *fmt, ...)
- {