CtsMediaBitstreamsTestCases: support cli arg passing

To pass a command line argument:
cts-tradefed run cts -m CtsMediaBitstreamsTestCases --module-arg \
  CtsMediaBitstreamsTestCases:set-option:<arg_name>:<arg_value>

For example:
arg_name can be "host-bitstreams-path",
and arg_value can be "./TestVectorsIttiam"

Also fixed typos: s,bitsteam,bitstream,

Bug: 30268664
Test: cts-tradefed run cts -m CtsMediaBitstreamsTestCases --module-arg \
  CtsMediaBitstreamsTestCases:set-option:host-bitstreams-path:./TestVectorsIttiam

Change-Id: Iee82a432e3b247817fc9ec82b8acb78006b6ee91
5 files changed