Bump baremetal power/assoc/unprovision timeouts

Increases the default timeouts for baremetal nodes to complete
certain state transitions.  This is required so Ironic can gain
support for waiting on external events (eg, neutron port updates)
at various times during a node's lifecycle.

Change-Id: If037ebd903bd64a6bcf3e925f38709a4d74bf353
diff --git a/etc/tempest.conf.sample b/etc/tempest.conf.sample
index 37d4d53..b4cbdb9 100644
--- a/etc/tempest.conf.sample
+++ b/etc/tempest.conf.sample
@@ -119,13 +119,13 @@
 
 # Timeout for association of Nova instance and Ironic node
 # (integer value)
-#association_timeout=10
+#association_timeout=30
 
 # Timeout for Ironic power transitions. (integer value)
-#power_timeout=20
+#power_timeout=60
 
 # Timeout for unprovisioning an Ironic node. (integer value)
-#unprovision_timeout=20
+#unprovision_timeout=60
 
 
 [boto]