[INFO] Testing LTP directly from github

Hello,

The CKI team will be updating the current LTP version to fetch directly from GitHub using a recent stable commit.

We were previously using the latest stable release (20190517), however we would like to use a later version of LTP to encourage more upstream LTP collaboration. Newer releases pull in recent test case fixes and help us find more kernel bugs. :-)

The test will initially be set to the waived status until we trust that it's going to be stable enough to run in the pipeline. We will continue to monitor the progress, but wanted to make you aware of these changes.

- Rachel