ekf2: manual style cleanup after astyle enforcement #24557

Job	Run time
build (check_format)	59s
build (tests)	5m 32s
build (tests_coverage)	6m 58s
build (px4_fmu-v2_default stack_check)	3m 14s
build (validate_module_configs)	49s
build (shellcheck_all)	1m 34s
build (NO_NINJA_BUILD=1 px4_fmu-v5_default)	4m 19s
build (NO_NINJA_BUILD=1 px4_sitl_default)	3m 12s
build (px4_sitl_allyes)	4m 18s
build (airframe_metadata)	1m 0s
build (module_documentation)	59s
build (parameters_metadata)	1m 3s
	33m 57s

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