uwb: add WiMedia LLC Protocol (build system)

Add the WLP build system (Kconfig and Kbuild files).

Signed-off-by: David Vrabel <david.vrabel@csr.com>
diff --git a/drivers/uwb/Makefile b/drivers/uwb/Makefile
index 6bdb8e7..79f48e3 100644
--- a/drivers/uwb/Makefile
+++ b/drivers/uwb/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_UWB)		+= uwb.o
+obj-$(CONFIG_UWB_WLP)		+= wlp/
 obj-$(CONFIG_UWB_WHCI)		+= umc.o whci.o whc-rc.o
 obj-$(CONFIG_UWB_HWA)		+= hwa-rc.o