IPMI robot codes with latest directives

Changes:
   - Run KeyWord If is deprecated since Robot
     Framework version 5.*, use 'IF' instead

Tested:
   - Checked using robot dry-run to make sure the
     syntax is not broken
Change-Id: I8a52aeb2939104f2c94f294272d92c4a7692970e
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/systest/gpu_stress_test.robot b/systest/gpu_stress_test.robot
index 2b03864..fbb32a8 100755
--- a/systest/gpu_stress_test.robot
+++ b/systest/gpu_stress_test.robot
@@ -92,8 +92,7 @@
     ${temperature_max}=  Get GPU Temperature Limit
     ${clock_max}=  Get GPU Clock Limit
 
-    Run Keyword If  '${HTX_MDT_PROFILE}' == 'mdt.bu'
-    ...  Create Default MDT Profile
+    IF  '${HTX_MDT_PROFILE}' == 'mdt.bu'  Create Default MDT Profile
 
     Run MDT Profile