wimax: Makefile, Kconfig and docbook linkage for the stack

This patch provides Makefile and KConfig for the WiMAX stack,
integrating them into the networking stack's Makefile, Kconfig and
doc-book templates.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/net/Makefile b/net/Makefile
index ba44604..0fcce89 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -63,3 +63,4 @@
 ifeq ($(CONFIG_NET),y)
 obj-$(CONFIG_SYSCTL)		+= sysctl_net.o
 endif
+obj-$(CONFIG_WIMAX)		+= wimax/