hippi: Move the HIPPI driver

Move the HIPPI driver into drivers/net/hippi/ and make the
necessary Kconfig and Makefile changes.

CC: Jes Sorensen <jes@wildopensource.com>
CC: Jes Sorensen <jes@trained-monkey.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index c5ec925..194095a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3049,6 +3049,7 @@
 F:	include/linux/hippidevice.h
 F:	include/linux/if_hippi.h
 F:	net/802/hippi.c
+F:	drivers/net/hippi/
 
 HOST AP DRIVER
 M:	Jouni Malinen <j@w1.fi>