[SPARK-15818][BUILD] Upgrade to Hadoop 2.7.2

## What changes were proposed in this pull request?

Updating the Hadoop version from 2.7.0 to 2.7.2 if we use the Hadoop-2.7 build profile

## How was this patch tested?

(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
Existing tests

(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)

I'd like us to use Hadoop 2.7.2 owing to the Hadoop release notes stating Hadoop 2.7.0 is not ready for production use

https://hadoop.apache.org/docs/r2.7.0/ states

"Apache Hadoop 2.7.0 is a minor release in the 2.x.y release line, building upon the previous stable release 2.6.0.
This release is not yet ready for production use. Production users should use 2.7.1 release and beyond."

Hadoop 2.7.1 release notes:
"Apache Hadoop 2.7.1 is a minor release in the 2.x.y release line, building upon the previous release 2.7.0. This is the next stable release after Apache Hadoop 2.6.x."

And then Hadoop 2.7.2 release notes:
"Apache Hadoop 2.7.2 is a minor release in the 2.x.y release line, building upon the previous stable release 2.7.1."

I've tested this is OK with Intel hardware and IBM Java 8 so let's test it with OpenJDK, ideally this will be pushed to branch-2.0 and master.

Author: Adam Roberts <aroberts@uk.ibm.com>

Closes #13556 from a-roberts/patch-2.