MAINTAINERS: Mark hyperv_fb driver Obsolete

The hyperv_fb driver is deprecated in favor of Hyper-V DRM driver. Split
the hyperv_fb entry from the hyperv drivers list, mark it obsolete.

Signed-off-by: Prasanna Kumar T S M <ptsm@linux.microsoft.com>
Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Wei Liu <wei.liu@kernel.org>

Author: Prasanna Kumar T S M

MAINTAINERS

@@ -11404,7 +11404,6 @@ F:	drivers/pci/controller/pci-hyperv-intf.c
 F:	drivers/pci/controller/pci-hyperv.c
 F:	drivers/scsi/storvsc_drv.c
 F:	drivers/uio/uio_hv_generic.c
-F:	drivers/video/fbdev/hyperv_fb.c
 F:	include/asm-generic/mshyperv.h
 F:	include/clocksource/hyperv_timer.h
 F:	include/hyperv/hvgdk.h
@@ -11418,6 +11417,16 @@ F:	include/uapi/linux/hyperv.h
 F:	net/vmw_vsock/hyperv_transport.c
 F:	tools/hv/
 
+HYPER-V FRAMEBUFFER DRIVER
+M:	"K. Y. Srinivasan" <kys@microsoft.com>
+M:	Haiyang Zhang <haiyangz@microsoft.com>
+M:	Wei Liu <wei.liu@kernel.org>
+M:	Dexuan Cui <decui@microsoft.com>
+L:	linux-hyperv@vger.kernel.org
+S:	Obsolete
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
+F:	drivers/video/fbdev/hyperv_fb.c
+
 HYPERBUS SUPPORT
 M:	Vignesh Raghavendra <vigneshr@ti.com>
 R:	Tudor Ambarus <tudor.ambarus@linaro.org>