AP_RangeFinder: JRE rename data_buff_ofs #32674

Job	Run time
build (base)	3m 4s
build-gcc-heli	3m 8s
build (clang)	3m 35s
autotest-heli (sitltest-heli)	11m 21s
autotest (sitltest-copter-tests1a)	11m 46s
autotest (sitltest-copter-tests1b)	13m 43s
autotest (sitltest-copter-tests1c)	20m 28s
autotest (sitltest-copter-tests1d)	11m 51s
autotest (sitltest-copter-tests1e)	13m 52s
autotest (sitltest-copter-tests2a)	13m 16s
autotest (sitltest-copter-tests2b)	35m 44s
	2h 21m 48s

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