MAINTAINERS: fix magnuskulke email-address

Consolidating email aliases.

Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

MAINTAINERS

@@ -586,7 +586,7 @@ F: include/system/whpx-common.h
 F: include/system/whpx-internal.h
 
 MSHV
-M: Magnus Kulke <magnus.kulke@linux.microsoft.com>
+M: Magnus Kulke <magnuskulke@linux.microsoft.com>
 R: Wei Liu <wei.liu@kernel.org>
 S: Supported
 F: accel/mshv/
@@ -601,7 +601,7 @@ F: accel/nitro/
 F: include/system/nitro-accel.h
 
 X86 MSHV CPUs
-M: Magnus Kulke <magnus.kulke@linux.microsoft.com>
+M: Magnus Kulke <magnuskulke@linux.microsoft.com>
 R: Wei Liu <wei.liu@kernel.org>
 S: Supported
 F: target/i386/mshv/