Fix initial condition in Escale (power) TC

Add initial condition to Escale Check Settings System Off Then On.

Resolves  openbmc/openbmc-test-automation#1144
Change-Id: I19d527344f21caf31b2fee38da4bcc05c9afb05b
Signed-off-by: Steven Sombar <ssombar@us.ibm.com>
diff --git a/systest/test_power_capping.robot b/systest/test_power_capping.robot
index 5a93989..5a7784a 100644
--- a/systest/test_power_capping.robot
+++ b/systest/test_power_capping.robot
@@ -117,6 +117,7 @@
     ${power_setting}=  Set Variable  ${near_max_power_50}
 
     Set DCMI Power Limit And Verify  ${power_setting}
+    Deactivate DCMI Power and Verify
 
     Smart Power Off