MAINTAINERS: Add staging branch for HyperBus

Update HyperBus entry with branch used to stage patches under
mtd.git. Also, add mailing list and patchwork queue information.

Signed-off-by: Vignesh Raghavendra <[email protected]>
Acked-by: Miquel Raynal <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]

Author: r-vignesh

MAINTAINERS

@@ -7770,6 +7770,9 @@ F:	Documentation/ABI/testing/debugfs-hyperv
 
 HYPERBUS SUPPORT
 M:	Vignesh Raghavendra <[email protected]>
+L:	[email protected]
+Q:	http://patchwork.ozlabs.org/project/linux-mtd/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git cfi/next
 S:	Supported
 F:	drivers/mtd/hyperbus/
 F:	include/linux/mtd/hyperbus.h