CT test fixes

Changes:
    - Added "Hard poweroff" before powering on.

Noticed in CT runs, that this test fails at "REST Power On", due to
soft power off failure. When ran as an individual test, this test
works good but not in a CT environment.

Change-Id: I2a830f1bb354fdd6e07bdc06c4aaf459e7137a4f
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/tests/ipmi/test_sensors_ipmi.robot b/tests/ipmi/test_sensors_ipmi.robot
index 6e987d6..5cb11b9 100644
--- a/tests/ipmi/test_sensors_ipmi.robot
+++ b/tests/ipmi/test_sensors_ipmi.robot
@@ -307,7 +307,7 @@
 Verify IPMI BT Capabilities Command
     [Documentation]  Verify IPMI BT capability command response.
     [Tags]  Verify_IPMI_BT_Capabilities_Command
-    [Setup]  REST Power On
+    [Setup]  REST Hard Power Off  AND  REST Power On
 
     ${output} =  Run IPMI command  0x06 0x36
     Should Be True  "${output}" == " 01 3f 3f 0a 01"