Backport request for 8033662

[roger riggs]

Please approve this direct backport of:

JDK-8033662 <https://bugs.openjdk.java.net/browse/JDK-8033662> 
java.time.format.DateTimeFormatter doesn't set zone when parsing

Changeset: http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/ce5a89221da4

The changset includes new tests for the affected functions.

The corrections to the implementation pass JCK 8.

Thanks, Roger