SWDEV-385303 - remove bad row pitch assignment

Change-Id: If959be2fa51035c54c3b08e74711077ad52ac4c8


[ROCm/clr commit: 7e3d8243b7]

projects/clr/rocclr/device/pal/palresource.cpp

@@ -1798,8 +1798,9 @@ void* Resource::gpuMemoryMap(size_t* pitch, uint flags, Pal::IGpuMemory* resourc
       Pal::SubresLayout layout;
       image_->GetSubresourceLayout(ImgSubresId, &layout);
       *pitch = layout.rowPitch / elementSize();
+    } else {
+      *pitch = desc().width_;
     }
-    *pitch = desc().width_;
     if (Pal::Result::Success == resource->Map(&address)) {
       return address;
     } else {