[7u] RFR: 8255226: (tz) Upgrade time-zone data to tzdata2020d

[Dmitry Cherepanov]

Bug: https://bugs.openjdk.java.net/browse/JDK-8255226
8u commit: https://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/ef358e4669db
Webrev: http://cr.openjdk.java.net/~dcherepanov/openjdk7u/8255226/webrev.v1/

The patch for 8u doesn't apply cleanly to 7u. The following modifications were done:

1) adjusted paths for tzdata files (make/data/tzdata -> make/sun/javazic/tzdata)

2) src/share/classes/sun/util/calendar/ZoneInfoFile.java
     test/sun/util/calendar/*
         Not applicable to 7u

Ran relevant regression tests, not issues found.

Thanks,

Dmitry