MAINTAINERS: update Muchun Song's email

I'm moving to the @linux.dev account. Map my old addresses and update it
to my new address.

Link: https://lkml.kernel.org/r/20221208115548.85244-1-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by Muchun Song and committed by Andrew Morton a501788a fcd0ccd8

Changed files
+4 -2
+2
.mailmap
··· 373 373 Roman Gushchin <roman.gushchin@linux.dev> <guro@fb.com> 374 374 Roman Gushchin <roman.gushchin@linux.dev> <guroan@gmail.com> 375 375 Roman Gushchin <roman.gushchin@linux.dev> <klamm@yandex-team.ru> 376 + Muchun Song <muchun.song@linux.dev> <songmuchun@bytedance.com> 377 + Muchun Song <muchun.song@linux.dev> <smuchun@gmail.com> 376 378 Ross Zwisler <zwisler@kernel.org> <ross.zwisler@linux.intel.com> 377 379 Rudolf Marek <R.Marek@sh.cvut.cz> 378 380 Rui Saraiva <rmps@joel.ist.utl.pt>
+2 -2
MAINTAINERS
··· 5299 5299 M: Michal Hocko <mhocko@kernel.org> 5300 5300 M: Roman Gushchin <roman.gushchin@linux.dev> 5301 5301 M: Shakeel Butt <shakeelb@google.com> 5302 - R: Muchun Song <songmuchun@bytedance.com> 5302 + R: Muchun Song <muchun.song@linux.dev> 5303 5303 L: cgroups@vger.kernel.org 5304 5304 L: linux-mm@kvack.org 5305 5305 S: Maintained ··· 9443 9443 9444 9444 HUGETLB SUBSYSTEM 9445 9445 M: Mike Kravetz <mike.kravetz@oracle.com> 9446 - M: Muchun Song <songmuchun@bytedance.com> 9446 + M: Muchun Song <muchun.song@linux.dev> 9447 9447 L: linux-mm@kvack.org 9448 9448 S: Maintained 9449 9449 F: Documentation/ABI/testing/sysfs-kernel-mm-hugepages