MAINTAINERS: new panasonic-laptop maintainer

Take over maintainership of panasonic-laptop from Harald Welte.
Signed-off-by: Kenneth Chan <kenneth.t.chan@gmail.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Link: https://lore.kernel.org/r/20200825101341.5699-1-kenneth.t.chan@gmail.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>

MAINTAINERS

@@ -13236,7 +13236,7 @@ F:	include/net/page_pool.h
 F:	net/core/page_pool.c
 
 PANASONIC LAPTOP ACPI EXTRAS DRIVER
-M:	Harald Welte <laforge@gnumonks.org>
+M:	Kenneth Chan <kenneth.t.chan@gmail.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/panasonic-laptop.c