hameg-serial: Style fixes.
hameg-serial: Finish up scope state fetching.
scpi: Add additional enums for SCPI commands.
scpi: Rename COMMAND -> CMD.
hameg-serial: Rename COMMAND -> CMD.
hameg-serial: Make the driver less vendor specific.
hameg-serial: Fix alignment.
hameg-serial: Add static to some arrays.
hameg-serial: Change level of log messages in scope_state_dump.