Additional fix for ETW failure in 32 process on 64 bit machines. (dotnet/coreclr...

Additional fix for ETW failure in 32 process on 64 bit machines. (dotnet/coreclr#12022)

* Addtional fix for ETW failure in 32 process on 64 bit machines.

The commit associated with Pull Request
    Fix failures in ETW logging on 4GB aware 32 bit processes dotnet/coreclr#11941

Was incorrect.   Some long were changed to ulong, but the critical casting an IntPtr to ulong still does
sign extention and not zero extension.   Need to cast to a void* first.  This fixes this.

Commit migrated from https://github.com/dotnet/coreclr/commit/170c8257ea663d95f8ea61b146473be54090905e