greybus: audio: Rename widget_type to jack_attrubute

This fields actually populates jack attribute. Thus, renamed to
reflect the real purpose.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/greybus_protocols.h

@@ -1922,7 +1922,7 @@ struct gb_audio_deactivate_rx_request {
 
 struct gb_audio_jack_event_request {
 	__u8	widget_id;
-	__u8	widget_type;
+	__u8	jack_attribute;
 	__u8	event;
 } __packed;