MAINTAINERS: update Li Wang's email address

Update my email address as my work email account is no longer in use. 
Also update .mailmap.

Link: https://lore.kernel.org/20260423132649.31126-1-li.wang@linux.dev
Signed-off-by: Li Wang <li.wang@linux.dev>
Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jakub Kacinski <kuba@kernel.org>
Cc: Li Wang <liwang@redhat.com>
Cc: Martin Kepplinger <martink@posteo.de>
Cc: Shannon Nelson <sln@onemain.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

.mailmap

@@ -507,6 +507,8 @@ Linus Walleij <linusw@kernel.org> <linus.walleij@stericsson.com>
 Linus Walleij <linusw@kernel.org> <linus.walleij@linaro.org>
 Linus Walleij <linusw@kernel.org> <triad@df.lth.se>
 <linux-hardening@vger.kernel.org> <kernel-hardening@lists.openwall.com>
+Li Wang <li.wang@linux.dev> <liwang@redhat.com>
+Li Wang <li.wang@linux.dev> <wangli.ahau@gmail.com>
 Li Yang <leoyang.li@nxp.com> <leoli@freescale.com>
 Li Yang <leoyang.li@nxp.com> <leo@zh-kernel.org>
 Lior David <quic_liord@quicinc.com> <liord@codeaurora.org>