MotionMark's multiply suite may generate incorrect score when requestAnimationFrame runs at 120hz

https://bugs.webkit.org/show_bug.cgi?id=240605

Reviewed by Simon Fraser.

This effectively increases the maximum complexity. Doing this for
two reasons: both Chrome and Safari are getting close to the maximum
complexity. Increasing the complexity ensures Chrome is scored
correctly when requestAnimationFrame runs at 120Hz.

Merge from https://commits.webkit.org/251810@main

* PerformanceTests/MotionMark/tests/master/resources/multiply.js:
Increases complexity.

MotionMark/tests/master/resources/multiply.js

diff --git a/MotionMark/tests/master/resources/multiply.js b/MotionMark/tests/master/resources/multiply.js
index e58eaa3..67dab33 100644
--- a/MotionMark/tests/master/resources/multiply.js
+++ b/MotionMark/tests/master/resources/multiply.js
@@ -37,7 +37,7 @@
         ["opacity", 0, 1],
         ["display", "none", "block"]
     ],
-    totalRows: 45,
+    totalRows: 55,
 
     initialize: function(benchmark, options)
     {