Copter: use new surface distance library #284

Job	Run time
build (stm32f7, chibios, 10)	4m 48s
build (stm32h7, chibios, 10)	4m 36s
build (fmuv2-plane, chibios, 10)	1m 58s
build (periph-build, chibios, 10)	3m 45s
build (iofirmware, chibios, 10)	1m 22s
build (CubeOrange-bootloader, chibios, 10)	49s
build (fmuv3-bootloader, chibios, 10)	1m 11s
build (revo-bootloader, chibios, 10)	1m 0s
build (stm32h7-debug, chibios, 10)	3m 10s
build (fmuv3, chibios, 10)	6m 38s
build (revo-mini, chibios, 10)	4m 58s
build (MatekF405-Wing, chibios, 10)	5m 37s
build (CubeOrange-ODID, chibios, 10)	3m 16s
build (CubeRedPrimary-bootloader, chibios, 10)	1m 9s
build (configure-all, chibios, 10)	10m 5s
build (build-options-defaults-test, chibios, 10)	27m 54s
build (signing, chibios, 10)	3m 42s
build (CubeOrange-PPP, chibios, 10)	2m 36s
build (SOHW, chibios, 10)	3m 55s
build (Pixhawk6X-PPPGW, chibios, 10)	1m 14s
	1h 33m 43s

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