Add multichannel support

Test: make vts -j123 && vts-tradefed run commandAndExit vts \
--skip-all-system-status-check \
--skip-preconditions -m VtsHalMediaOmxStoreV1_0Host \
-l INFO

Bug: 69811887
Change-Id: I6ddf882d5a0d991acc8123ed6d220835fc6cce5c
1 file changed