Added a keyword to check "quiesced state".

Resolves openbmc/openbmc-test-automation#322

Change-Id: I2b83aece68da083e625a0473087df3fa7c783d48
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/lib/state_manager.robot b/lib/state_manager.robot
index 8177f63..9372c15 100755
--- a/lib/state_manager.robot
+++ b/lib/state_manager.robot
@@ -48,6 +48,14 @@
     ${host_state}=  Get Host State
     Should Be Equal  Off  ${host_state}
 
+Is Host Quiesced
+    [Documentation]  Check if host state is quiesced.
+    ${host_state}=  Get Host State
+    Should Be Equal  Quiesced  ${host_state}
+    ${status}=  Run Keyword And Return Status  Should Be Equal
+    ...  ${host_state}  Quiesced
+    [Return]  ${status}
+
 
 Get Host State
     [Documentation]  Return the state of the host as a string.