Staging: dream: add support for input on GPIO pins

Support for input devices connected to GPIO pins. This adds support
for HTC Dream's keyboard and its trackball. Generic support already
exists for keyboard on GPIO, but this one is more advanced because it
can detect shadow key presses (and actually works with Dream :-).

(It also contains Kconfig/Makefile changes, including some that were
missing from previous commit. Sorry.)

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/dream/Kconfig b/drivers/staging/dream/Kconfig
new file mode 100644
index 0000000..52bd187d
--- /dev/null
+++ b/drivers/staging/dream/Kconfig
@@ -0,0 +1,12 @@
+source "drivers/staging/dream/smd/Kconfig"
+
+source "drivers/staging/dream/camera/Kconfig"
+
+
+config INPUT_GPIO
+	tristate "GPIO driver support"
+	help
+	  Say Y here if you want to support gpio based keys, wheels etc...
+
+
+