Update inventory host reboot keyword with "Host Reboot"

Change-Id: Icef2394447fbacd9cd61938e9d3ad877a0374017
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/tests/test_inventory.robot b/tests/test_inventory.robot
index dfda300..04985fb 100644
--- a/tests/test_inventory.robot
+++ b/tests/test_inventory.robot
@@ -644,8 +644,7 @@
     REST Power On  stack_mode=skip  quiet=1
     Delete All Error Logs
     ${inventory_before}=  Get URL List  ${HOST_INVENTORY_URI}
-    Initiate Host Reboot
-    Wait Until Keyword Succeeds  10 min  10 sec  Is OS Booted
+    Host Reboot
     Delete All Error Logs
     ${inventory_after}=  Get URL List  ${HOST_INVENTORY_URI}
     Lists Should Be Equal  ${inventory_before}  ${inventory_after}