afs: add a MAINTAINERS record for AFS

Add a MAINTAINERS record for AFS.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -163,6 +163,12 @@ M:	A2232@gmx.net
 L:	linux-m68k@lists.linux-m68k.org
 S:	Maintained
 
+AFS FILESYSTEM & AF_RXRPC SOCKET DOMAIN
+P:	David Howells
+M:	dhowells@redhat.com
+L:	linux-afs@lists.infradead.org
+S:	Supported
+
 AIO
 P:	Benjamin LaHaise
 M:	bcrl@kvack.org