Accommodate Valid Range lower/upper args

Valid Range previously accepted a valid_range string argument whose format
was "<lower>..<upper>".  The valid_range argument has been deprecated and
replaced by 2 arguments: lower and upper.

Also, Rvalid Range has been renamed to Valid Range.

Instances of Rvalid Range have been altered to accommodate the changes.

Change-Id: If2e8495fb9d2099007b68d4451a8460924fbc999
Signed-off-by: Michael Walsh <micwalsh@us.ibm.com>
diff --git a/redfish/systems/test_systems_inventory.robot b/redfish/systems/test_systems_inventory.robot
index 2d0699b..26173f4 100755
--- a/redfish/systems/test_systems_inventory.robot
+++ b/redfish/systems/test_systems_inventory.robot
@@ -27,9 +27,8 @@
     [Documentation]  Get the number of CPUs that are functional and enabled.
     [Tags]  Get_Processor_Inventory_Via_Redfish_And_Verify
 
-    Rprint Vars  num_valid_cpus
-    Rprint Vars  min_num_cpus
-    Rvalid Range  num_valid_cpus  ${min_num_cpus}..
+    Rprint Vars  num_valid_cpus  min_num_cpus
+    Valid Range  num_valid_cpus  ${min_num_cpus}
 
 
 Get Available CPU Cores And Verify