MAINTAINERS: Add maintainers for mshv accelerator

Adding Magnus Kulke and Wei Liu to the maintainers file for the
respective folders/files.

Signed-off-by: Magnus Kulke <magnuskulke@linux.microsoft.com>
Link: https://lore.kernel.org/r/20250916164847.77883-28-magnuskulke@linux.microsoft.com
[Rename "MAHV CPUs" to mention x86. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed