pk: Move pk_option_record->_seen into struct pk_cmdline_parse_ctx
pk: Move pk_option_record->_seen into struct pk_cmdline_parse_ctx

- Move pk_option_record's _seen field into the parse context structure
so that it is no longer static

- Make END_OPTS the number of available options, rather than -1

cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr,cmusatyalab/openisr