Fix issue with reset_idrac on some servers

This patch increases the amount of time to sleep before checking to see
if the iDRAC is ready following a reset to 60 seconds. 30 seconds was
too short for some servers.

Change-Id: I9252a2d56b852f72efcf571bf7d8e70cbb7cd874

dracclient/client.py

@@ -240,7 +240,7 @@ class DRACClient(object):
         return self._idrac_cfg.set_idrac_settings(settings, idrac_fqdd)
 
     def reset_idrac(self, force=False, wait=False,
-                    ready_wait_time=30):
+                    ready_wait_time=60):
         """Resets the iDRAC and optionally block until reset is complete.
 
         :param force: does a force reset when True and a graceful reset when