8351624: [8u] Xerces-J version wrong in THIRD_PARTY_README after JDK-7150324

Reviewed-by: sgehwolf

Author: Taizo Kurashige

THIRD_PARTY_README

@@ -3083,7 +3083,7 @@ included with JRE 8, JDK 8, and OpenJDK 8.
   Apache Jakarta BCEL 5.1 
   Apache Santuario XML Security for Java 2.1.3
   Apache Xalan-Java 2.7.2
-  Apache Xerces Java 2.10.0 
+  Apache Xerces Java 2.7.1
   Apache XML Resolver 1.1