Fix race condition on sending data

If data was sent prior to the activate payload response, the code
to calculate the maximum chunk could not suceed.  Correct this
by having sent data accumulate as pending until connected state reached.

Change-Id: I7c9aed67209b3526bd10cafeee0bae6b1b0ab85f

pyghmi/ipmi/console.py

@@ -130,6 +130,8 @@ class Console(object):
         #code anyway...
         self.ipmi_session.sol_handler = self._got_sol_payload
         self.connected = True
+        if len(self.pendingoutput) > 0:
+            self._sendpendingoutput()
 
     def _got_cons_input(self, handle):
         """Callback for handle events detected by ipmi session
@@ -139,7 +141,11 @@ class Console(object):
             self._sendpendingoutput()
 
     def send_data(self, data):
+        if self.broken:
+            return
         self.pendingoutput += data
+        if not self.connected:
+            return
         if not self.awaitingack:
             self._sendpendingoutput()