[7u] RFR: JDK-8275766: (tz) Update Timezone Data to 2021e

[Dmitry Cherepanov]

JBS: https://bugs.openjdk.java.net/browse/JDK-8275766
Webrev: http://cr.openjdk.java.net/~dcherepanov/openjdk7u/8275766/webrev.01/

Applies clean after path shuffling. Skipped tests as there’s no copy of the data in the tests. The change in ZoneInfoFile.java isn't applicable to 7u. Relevant tests passed.

Thanks,

Dmitry