add: Battery_Status_V2 MAVLink stream #31175

Job	Run time
build (check_newlines)	2m 14s
build (px4_fmu-v2_default stack_check)	3m 47s
build (check_format)	1m 37s
build (tests)	8m 59s
build (shellcheck_all)	2m 24s
build (validate_module_configs)	1m 29s
build (module_documentation)	1m 30s
build (NO_NINJA_BUILD=1 px4_sitl_default)	3m 43s
build (NO_NINJA_BUILD=1 px4_fmu-v5_default)	4m 26s
build (px4_sitl_allyes)	7m 43s
build (tests_coverage)	11m 32s
	49m 24s

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