SWDEV-308843 - Increase MaxPinnedXferSize to 128

This allows experimenting with env var GPU_PINNED_XFER_SIZE which is
still at a default of 32MB

Change-Id: I85ade700ed58d498eba29d1737601dc74d4c26a4

rocclr/device/rocm/rocsettings.cpp

@@ -68,7 +68,7 @@ Settings::Settings() {
   // Initialize transfer buffer size to 1MB by default
   xferBufSize_ = 1024 * Ki;
 
-  const static size_t MaxPinnedXferSize = 32;
+  const static size_t MaxPinnedXferSize = 128;
   pinnedXferSize_ = std::min(GPU_PINNED_XFER_SIZE, MaxPinnedXferSize) * Mi;
   pinnedMinXferSize_ = std::min(GPU_PINNED_MIN_XFER_SIZE * Ki, pinnedXferSize_);