MAINTAINERS: Add the rtase ethernet driver entry

Add myself and Larry Chiu as the maintainer for the rtase ethernet driver.
Signed-off-by: Justin Lai <justinlai0215@realtek.com>
Link: https://patch.msgid.link/20240904032114.247117-14-justinlai0215@realtek.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

MAINTAINERS

@@ -19906,6 +19906,13 @@ L:	linux-remoteproc@vger.kernel.org
 S:	Maintained
 F:	drivers/tty/rpmsg_tty.c
 
+RTASE ETHERNET DRIVER
+M:	Justin Lai <justinlai0215@realtek.com>
+M:	Larry Chiu <larry.chiu@realtek.com>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ethernet/realtek/rtase/
+
 RTL2830 MEDIA DRIVER
 L:	linux-media@vger.kernel.org
 S:	Orphan