HIVE-3772 Fix concurrency bug in LazyBinaryUtils due to a static field (Mikhail Bautin via egc)

Submitted by:Mikhail Bautin and Reynold Xin	
Reviewed by: Edward Capriolo	
Approved by: Edward Capriolo	


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1512758 13f79535-47bb-0310-9956-ffa450edef68