power-operations: add indeterminate status bar

Change-Id: I400aa855e4e9dd6b00f665083a7ba0fa4843825d
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/src/scss/components/_power-ops.scss b/src/scss/components/_power-ops.scss
index 8cd7aa8..1a517be 100644
--- a/src/scss/components/_power-ops.scss
+++ b/src/scss/components/_power-ops.scss
@@ -69,6 +69,15 @@
         }
       }
     }
+    &.power__state-indet {
+      color: $darkgrey;
+      @include indeterminate-bar;
+      .power__state {
+        span:before {
+          color: $status-warn;
+        }
+      }
+    }
   }
 
   // Power button options