hwdef: CPNs: set servo limits to 1150-1850 #884

Job	Run time
build (stm32f7, chibios, 10)	8m 9s
build (stm32h7, chibios, 10)	26m 10s
build (fmuv2-plane, chibios, 10)	13m 12s
build (periph-build, chibios, 10)	10m 24s
build (iofirmware, chibios, 10)	6m 12s
build (CubeOrange-bootloader, chibios, 10)	3m 41s
build (fmuv3-bootloader, chibios, 10)	3m 46s
build (revo-bootloader, chibios, 10)	3m 58s
build (stm32h7-debug, chibios, 10)	15m 11s
build (fmuv3, chibios, 10)	10m 37s
build (revo-mini, chibios, 10)	8m 22s
build (MatekF405-Wing, chibios, 10)	9m 1s
build (CubeOrange-ODID, chibios, 10)	16m 45s
build (CubeRedPrimary-bootloader, chibios, 10)	3m 51s
build (configure-all, chibios, 10)	12m 32s
build (build-options-defaults-test, chibios, 10)	12m 5s
build (signing, chibios, 10)	20m 19s
build (CubeOrange-PPP, chibios, 10)	15m 2s
build (CubeOrange-SOHW, chibios, 10)	15m 9s
build (Pixhawk6X-PPPGW, chibios, 10)	7m 57s
	3h 42m 23s

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