RFR(xs) 8223336: Assert in VirtualMemoryTracker::remove_released_region when running the SharedArchiveConsistency.java test with -XX:NativeMemoryTracking=detail

[Calvin Cheung]

bug: https://bugs.openjdk.java.net/browse/JDK-8223336

webrev: http://cr.openjdk.java.net/~ccheung/8223336/webrev.00/

A simple fix is adding the missing call to 
MemTracker::record_virtual_memory_reserve() in the Windows version of 
os::pd_map_memory().
On platforms other than Windows, the os::pd_map_memory() doesn't call 
release_memory() and the caller (os::map_memory()) calls 
MemTracker::record_virtual_memory_reserve() if the returned value from 
os::pd_map_memory() is non-NULL. That's why this bug reproduces only on 
Windows.

Testing: ran SharedArchiveConsistency.java with 
-XX:NativeMemoryTracking=detail on Windows;
              ran all runtime/NMT tests on Windows.

thanks,
Calvin