hg: build-infra/jdk8: * Replace ARCH with OPENJDK_TARGET_CPU_LEGACY.

[magnus.ihse.bursie at oracle.com]

Changeset: a8292ea82b42
Author:    ihse
Date:      2012-08-17 14:43 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/a8292ea82b42

* Replace ARCH with OPENJDK_TARGET_CPU_LEGACY.
* Replace ENDIAN with OPENJDK_TARGET_CPU_ENDIAN.
* Remove redundant logic for setting ENDIAN.

! common/autoconf/generated-configure.sh
! common/autoconf/platform.m4
! common/autoconf/spec.gmk.in
! common/autoconf/spec.sh.in
! common/autoconf/toolchain.m4