zswap: add Vitaly to the maintainers list

Per conversation with Dan, add myself to the zswap MAINTAINERS list.

Link: http://lkml.kernel.org/r/20191028143154.31304-1-vitaly.wool@konsulko.comSigned-off-by: Vitaly Wool <vitaly.wool@konsulko.com>
Acked-by: Dan Streetman <ddstreet@ieee.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -18034,6 +18034,7 @@ F:	Documentation/vm/zsmalloc.rst
 ZSWAP COMPRESSED SWAP CACHING
 M:	Seth Jennings <sjenning@redhat.com>
 M:	Dan Streetman <ddstreet@ieee.org>
+M:	Vitaly Wool <vitaly.wool@konsulko.com>
 L:	linux-mm@kvack.org
 S:	Maintained
 F:	mm/zswap.c