Port mode configuration test - II

Change port modes randomly before the start of test and see if it
effects the end behavior

Test: make vts -j99 BUILD_GOOGLE_VTS=true TARGET_PRODUCT=aosp_arm64 \
&& vts-tradefed run commandAndExit vts \
--skip-all-system-status-check --primary-abi-only \
--skip-preconditions --module VtsHalMediaOmxV1_0Host \
-l INFO

Bug: 63796949

Change-Id: I28c923b8e6cdc0f7bf6dd394ef6d088ff489e2e0