hg: jdk9/sandbox: 8168503: JEP 297: Unified arm32/arm64 Port

[chris.hegarty at oracle.com]

Changeset: ebb53399f956
Author:    bobv
Date:      2016-12-19 12:39 -0500
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/ebb53399f956

8168503: JEP 297: Unified arm32/arm64 Port
Reviewed-by: kvn, enevill, ihse, dholmes, erikj, coleenp, cjplummer

! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/hotspot.m4