AP_NavEKF: tidy creation of vectors #39132

Job	Run time
build (stm32f7, chibios, 10)	3m 47s
build (stm32h7, chibios, 10)	3m 24s
build (fmuv2-plane, chibios, 10)	1m 47s
build (periph-build, chibios, 10)	3m 48s
build (iofirmware, chibios, 10)	1m 38s
build (CubeOrange-bootloader, chibios, 10)	48s
build (fmuv3-bootloader, chibios, 10)	51s
build (revo-bootloader, chibios, 10)	50s
build (stm32h7-debug, chibios, 10)	2m 6s
build (fmuv3, chibios, 10)	4m 45s
build (revo-mini, chibios, 10)	3m 57s
build (MatekF405-Wing, chibios, 10)	4m 41s
build (CubeOrange-ODID, chibios, 10)	2m 55s
build (CubeRedPrimary-bootloader, chibios, 10)	52s
build (configure-all, chibios, 10)	10m 1s
build (build-options-defaults-test, chibios, 10)	8m 0s
build (signing, chibios, 10)	2m 58s
build (CubeOrange-PPP, chibios, 10)	2m 5s
build (SOHW, chibios, 10)	3m 19s
build (Pixhawk6X-PPPGW, chibios, 10)	1m 17s
build (new-check, chibios, 10)	4m 34s
	1h 8m 23s

Provide feedback