greybus: update descriptor type enums to match renumbering in spec

Greybus spec updated the descriptor type values and added an
additional class descriptor type. Change the enum accordingly.
Signed-off-by: Matt Porter <mporter@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/greybus_manifest.h

@@ -20,8 +20,9 @@ struct greybus_manifest_header {
 
 enum greybus_descriptor_type {
 	GREYBUS_TYPE_INVALID		= 0x0000,
-	GREYBUS_TYPE_FUNCTION		= 0x0001,
-	GREYBUS_TYPE_MODULE		= 0x0002,
+	GREYBUS_TYPE_MODULE		= 0x0001,
+	GREYBUS_TYPE_FUNCTION		= 0x0002,
+	GREYBUS_TYPE_CLASS		= 0x0003,
 	GREYBUS_TYPE_STRING		= 0x0004,
 	GREYBUS_TYPE_CPORT		= 0x0005,
 };