MAINTAINERS: add samples/pktgen to NETWORKING [GENERAL]

samples/pktgen is missing in the MAINTAINERS file.

Suggested-by: Antoine Tenart <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Hangbin Liu <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Andrew Lunn <[email protected]>

Author: liuhangbin

MAINTAINERS

@@ -16195,6 +16195,7 @@ F:	include/uapi/linux/rtnetlink.h
 F:	lib/net_utils.c
 F:	lib/random32.c
 F:	net/
+F:	samples/pktgen/
 F:	tools/net/
 F:	tools/testing/selftests/net/
 X:	Documentation/networking/mac80211-injection.rst