fix a bug for calculating the prev_sum of MGSyncInfo struct used in multi-gpu cooperative launch

SWDEV-251619

Change-Id: I6566bfc9384bb4677562085991a7a01d3cea3935

hipamd/rocclr/hip_module.cpp

@@ -537,7 +537,7 @@ hipError_t ihipLaunchCooperativeKernelMultiDevice(hipLaunchParams* launchParamsL
     if (result != hipSuccess) {
       break;
     }
-    prevGridSize += launch.gridDim.x * launch.gridDim.y * launch.gridDim.z;
+    prevGridSize += globalWorkSizeX * globalWorkSizeY * globalWorkSizeZ;
   }
 
   // Sync the execution streams on all devices