Include all handler suites through the shared KUnit switch in external
module builds. Link the capacity suite as a separate object with private
access to the command dispatcher. Keep the access declarations available
to ordinary in-tree builds.
Check READ CAPACITY response bytes, queue geometry, short and split
buffers, and invalid CDBs using private fileio and nullio fixtures.
Bind the command CDB to its inline buffer and provide a private session
for allocation-failure status handling.
Gleb Chesnokov
4029d4f008