MAINTAINERS: add an entry for kfifo

Kfifo has been written by Stefani Seibold and she's implicitly expected
to Ack any changes to it.  She's not however officially listed as kfifo
maintainer which leads to delays in patch review.  This patch proposes
to add an explitic entry for kfifo to MAINTAINERS file.

[[email protected]: alphasort F: entries, per Joe]
[[email protected]: remove colon, per Bartosz]
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>
Acked-by: Stefani Seibold <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Joe Perches <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: brgl

MAINTAINERS

@@ -9416,6 +9416,13 @@ F:	include/linux/keyctl.h
 F:	include/uapi/linux/keyctl.h
 F:	security/keys/
 
+KFIFO
+M:	Stefani Seibold <[email protected]>
+S:	Maintained
+F:	include/linux/kfifo.h
+F:	lib/kfifo.c
+F:	samples/kfifo/
+
 KGDB / KDB /debug_core
 M:	Jason Wessel <[email protected]>
 M:	Daniel Thompson <[email protected]>