AOM AV1 1.2.0

pts/aom-av1-1.2.0 - 16 September 2019 - Update per https://github.com/phoronix-test-suite/test-profiles/pull/101 re-base to AOM Git as of 2019-09-16.

downloads.xml:

install.sh:

results-definition.xml:

test-definition.xml: