MAINTAINERS: make Breno the netconsole maintainer

netconsole has no maintainer, and Breno has been working on
improving it consistently for some time. So I think we found
the maintainer :)
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Breno Leitao <leitao@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -15702,6 +15702,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/hwmon/nuvoton,nct6775.yaml
 F:	drivers/hwmon/nct6775-i2c.c
 
+NETCONSOLE
+M:	Breno Leitao <leitao@debian.org>
+S:	Maintained
+F:	Documentation/networking/netconsole.rst
+F:	drivers/net/netconsole.c
+
 NETDEVSIM
 M:	Jakub Kicinski <kuba@kernel.org>
 S:	Maintained