MAINTAINERS: replace the unavailable email address

Since I'm not working as an assignee in Linaro, replace the Linaro email
address with my personal one.

Signed-off-by: Zhaoshenglong <zhaoshenglong@huawei.com>
Message-id: 1513058845-9768-1-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -543,7 +543,7 @@ F: include/hw/*/xlnx*.h
 
 ARM ACPI Subsystem
 M: Shannon Zhao <zhaoshenglong@huawei.com>
-M: Shannon Zhao <shannon.zhao@linaro.org>
+M: Shannon Zhao <shannon.zhaosl@gmail.com>
 L: qemu-arm@nongnu.org
 S: Maintained
 F: hw/arm/virt-acpi-build.c