MAINTAINERS: add Sabrina to TLS maintainers

Sabrina has been very helpful reviewing TLS patches, fixing bugs,
and, I believe, the last one to implement any major feature in
the TLS code base (rekeying). Add her as a maintainer.

Acked-by: Sabrina Dubroca <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

MAINTAINERS

@@ -17850,6 +17850,7 @@ F:	net/ipv6/tcp*.c
 NETWORKING [TLS]
 M:	John Fastabend <[email protected]>
 M:	Jakub Kicinski <[email protected]>
+M:	Sabrina Dubroca <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	include/net/tls.h