AutoTest: Move benchmark icon to Utils

Make it available for others.

Change-Id: I423dec664a263f5586d98ac387b871b6cf8162d9
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/autotest/autotest.qrc

@@ -4,8 +4,6 @@
         <file>images/settingscategory_autotest@2x.png</file>
         <file>images/leafsort.png</file>
         <file>images/leafsort@2x.png</file>
-        <file>images/benchmark.png</file>
-        <file>images/benchmark@2x.png</file>
         <file>images/data.png</file>
         <file>images/data@2x.png</file>
         <file>images/text.png</file>

src/plugins/autotest/autotesticons.h

@@ -73,7 +73,7 @@ const Utils::Icon RESULT_BLACKLISTEDXFAIL({
         Utils::Icon::Tint | Utils::Icon::PunchEdges);
 const Utils::Icon RESULT_BENCHMARK({
         {":/utils/images/filledcircle.png", Utils::Theme::BackgroundColorNormal},
-        {":/autotest/images/benchmark.png", Utils::Theme::PanelTextColorDark}}, Utils::Icon::Tint);
+        {":/utils/images/stopwatch.png", Utils::Theme::PanelTextColorDark}}, Utils::Icon::Tint);
 const Utils::Icon RESULT_MESSAGEDEBUG({
         {":/utils/images/filledcircle.png", Utils::Theme::OutputPanes_TestDebugTextColor}},
         Utils::Icon::Tint);