greybus: Switch to Cport 0 for svc and control protocol

Initially we fixed it to Cport 2, but its changed to Cport 0 now. Lets
switch that in code as well.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Perry Hung <perry@leaflabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/greybus_protocols.h

@@ -64,9 +64,9 @@
  * CONTROL and SVC protocols for communication between AP and SVC.
  */
 #define GB_SVC_BUNDLE_ID			0
-#define GB_SVC_CPORT_ID				2
+#define GB_SVC_CPORT_ID				0
 #define GB_CONTROL_BUNDLE_ID			0
-#define GB_CONTROL_CPORT_ID			2
+#define GB_CONTROL_CPORT_ID			0
 
 
 /* Control Protocol */