Staging: workaround build system bug

This is needed as CONFIG_STAGING is set to y, yet there is no code in
drivers/staging/ to build, so the build-in.o doesn't get created
properly.  Create a "dummy" module in drivers/staging called staging.c
to work around this bug.

Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 93decb8..7c466e9 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -1,5 +1,8 @@
 # Makefile for staging directory
 
+# fix for build system bug...
+obj-$(CONFIG_STAGING)		+= staging.o
+
 obj-$(CONFIG_ET131X)		+= et131x/
 obj-$(CONFIG_SLICOSS)		+= slicoss/
 obj-$(CONFIG_SXG)		+= sxg/