[PATCH] MAINTAINERS: Update Xen maintainership

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

Due to time constraints I am stepping down as maintainter. I will stay
as reviewer for x86 code (for which create a separate category).

Stefano is now maintainer for Xen hypervisor interface and Oleksandr has
graciously agreed to become a reviewer.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
---
 MAINTAINERS | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index d6d879cb0afd..b879c4e6750e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21549,23 +21549,29 @@ F:    arch/arm64/include/asm/xen/
 F:     arch/arm64/xen/
 
 XEN HYPERVISOR INTERFACE
-M:     Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
 M:     Juergen Gross <jgross@xxxxxxxx>
-R:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
+M:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
+R:     Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
 L:     xen-devel@xxxxxxxxxxxxxxxxxxxx (moderated for non-subscribers)
 S:     Supported
 T:     git git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git
 F:     Documentation/ABI/stable/sysfs-hypervisor-xen
 F:     Documentation/ABI/testing/sysfs-hypervisor-xen
-F:     arch/x86/include/asm/pvclock-abi.h
-F:     arch/x86/include/asm/xen/
-F:     arch/x86/platform/pvh/
-F:     arch/x86/xen/
 F:     drivers/*/xen-*front.c
 F:     drivers/xen/
 F:     include/uapi/xen/
 F:     include/xen/
 
+XEN HYPERVISOR X86
+M:     Juergen Gross <jgross@xxxxxxxx>
+R:     Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
+L:     xen-devel@xxxxxxxxxxxxxxxxxxxx (moderated for non-subscribers)
+S:     Supported
+F:     arch/x86/include/asm/pvclock-abi.h
+F:     arch/x86/include/asm/xen/
+F:     arch/x86/platform/pvh/
+F:     arch/x86/xen/
+
 XEN NETWORK BACKEND DRIVER
 M:     Wei Liu <wei.liu@xxxxxxxxxx>
 M:     Paul Durrant <paul@xxxxxxx>
-- 
1.8.3.1