COMPMID-415: Accept uppercase commandline values

Change-Id: I25ae8b3ca427719aff334799ecab50a1e21fdd56
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/85816
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/framework/DatasetModes.cpp b/framework/DatasetModes.cpp
index 0a9e92a..3f747df 100644
--- a/framework/DatasetModes.cpp
+++ b/framework/DatasetModes.cpp
@@ -23,6 +23,8 @@
  */
 #include "DatasetModes.h"
 
+#include "Utils.h"
+
 #include <map>
 
 namespace arm_compute
@@ -42,7 +44,7 @@
 
     try
     {
-        return modes.at(name);
+        return modes.at(tolower(name));
     }
     catch(const std::out_of_range &)
     {