MAINTAINERS: Update email address of Jonathan for Xeon SP

Change-Id: Icbf04f347a02670d0bf38e0328fa6b523d6851b5
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81337
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/MAINTAINERS b/MAINTAINERS
index e7375da..49160c1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -938,7 +938,7 @@
 F:	src/soc/intel/tigerlake/
 
 INTEL Xeon Sacalable Processor Family
-M:	Jonathan Zhang <jonzhang@fb.com>
+M:	Jonathan Zhang <jon.zhixiong.zhang@gmail.com>
 M:	Johnny Lin <Johnny_Lin@wiwynn.com>
 M:	Tim Chu <Tim.Chu@quantatw.com>
 M:	Arthur Heymans <arthur@aheymans.xyz>