Snap for 6290189 from a84a159a424c0ef54b0323d9e88f2688c7c4dcb1 to qt-qpr3-release

Change-Id: I82422e79aafcb5aa2e88d9b5d4510a723e2853e3
diff --git a/tools/windows/bin/lib64/libwinpthread-1.dll b/tools/windows/bin/lib64/libwinpthread-1.dll
new file mode 100755
index 0000000..ee5d7a3
--- /dev/null
+++ b/tools/windows/bin/lib64/libwinpthread-1.dll
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