hg: jdk/sandbox: 8201246: Export native function to set platform encoding

[chris.hegarty at oracle.com]

Changeset: 7b00ac6c11ab
Author:    rriggs
Date:      2018-04-10 10:49 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/7b00ac6c11ab

8201246: Export native function to set platform encoding
Reviewed-by: rriggs
Contributed-by: andrew_m_leonard at uk.ibm.com

! src/java.base/share/native/libjava/jni_util.c
! src/java.base/share/native/libjava/jni_util.h