Hyper-V: add myself as a maintainer

Signed-off-by: Wei Liu <wei.liu@kernel.org>
Acked-by: K. Y. Srinivasan <kys@microsoft.com>

MAINTAINERS

@@ -7738,6 +7738,7 @@ Hyper-V CORE AND DRIVERS
 M:	"K. Y. Srinivasan" <kys@microsoft.com>
 M:	Haiyang Zhang <haiyangz@microsoft.com>
 M:	Stephen Hemminger <sthemmin@microsoft.com>
+M:	Wei Liu <wei.liu@kernel.org>
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
 L:	linux-hyperv@vger.kernel.org
 S:	Supported