MAINTAINERS: new entry for IPv6 IOAM

Create a maintainer entry for IPv6 IOAM. Add myself as I authored most
if not all of the IPv6 IOAM code in the kernel and actively participate
in the related IETF groups.

Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Link: https://patch.msgid.link/20251014170650.27679-1-justin.iurman@uliege.be
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: IurmanJ

MAINTAINERS

@@ -18012,6 +18012,16 @@ X:	net/rfkill/
 X:	net/wireless/
 X:	tools/testing/selftests/net/can/
 
+NETWORKING [IOAM]
+M:	Justin Iurman <justin.iurman@uliege.be>
+S:	Maintained
+F:	Documentation/networking/ioam6*
+F:	include/linux/ioam6*
+F:	include/net/ioam6*
+F:	include/uapi/linux/ioam6*
+F:	net/ipv6/ioam6*
+F:	tools/testing/selftests/net/ioam6*
+
 NETWORKING [IPSEC]
 M:	Steffen Klassert <steffen.klassert@secunet.com>
 M:	Herbert Xu <herbert@gondor.apana.org.au>