AP_NavEKF3: dereference arrays using remembered allocation count #36186

Job	Run time
build (stm32f7, chibios, 10)	4m 12s
build (stm32h7, chibios, 10)	4m 6s
build (fmuv2-plane, chibios, 10)	2m 16s
build (periph-build, chibios, 10)	3m 53s
build (iofirmware, chibios, 10)	1m 32s
build (CubeOrange-bootloader, chibios, 10)	59s
build (fmuv3-bootloader, chibios, 10)	1m 8s
build (revo-bootloader, chibios, 10)	56s
build (stm32h7-debug, chibios, 10)	2m 13s
build (fmuv3, chibios, 10)	5m 38s
build (revo-mini, chibios, 10)	4m 19s
build (MatekF405-Wing, chibios, 10)	4m 43s
build (CubeOrange-ODID, chibios, 10)	2m 57s
build (CubeRedPrimary-bootloader, chibios, 10)	1m 14s
build (configure-all, chibios, 10)	9m 18s
build (build-options-defaults-test, chibios, 10)	6m 28s
build (signing, chibios, 10)	3m 13s
build (CubeOrange-PPP, chibios, 10)	2m 29s
build (CubeOrange-SOHW, chibios, 10)	2m 14s
build (Pixhawk6X-PPPGW, chibios, 10)	1m 16s
	1h 5m 4s

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