hwdef: update PilotGaeaSH7V1-bdshot definitions and add default params #61

Job	Run time
build (astyle-cleanliness)	49s
build (logger_metadata)	1m 12s
build (param_parse)	51s
build (check_autotest_options)	1m 5s
build (param-file-validation)	54s
build (python-cleanliness)	1m 9s
build (validate_board_list)	44s
	6m 44s

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