mprotect: add syscall #1350

Job	Run time
call-ci / build (armv7a7-imx6ull-evk)	2m 16s
call-ci / build (armv7a9-zynq7000-qemu)	1m 18s
call-ci / build (armv7a9-zynq7000-zedboard)	1m 43s
call-ci / build (armv7a9-zynq7000-zturn)	1m 15s
call-ci / build (armv7m4-stm32l4x6-nucleo)	1m 23s
call-ci / build (armv7m7-imxrt105x-evk)	1m 56s
call-ci / build (armv7m7-imxrt106x-evk)	1m 28s
call-ci / build (armv7m7-imxrt117x-evk)	1m 44s
call-ci / build (host-generic-pc)	1m 20s
call-ci / build (ia32-generic-pc)	1m 18s
call-ci / build (ia32-generic-qemu)	1m 32s
call-ci / build (riscv64-generic-qemu)	54s
call-ci / build (riscv64-generic-spike)	1m 19s
call-ci / build (sparcv8leon3-gr716-mini)	1m 10s
call-ci / test EMU (armv7a9-zynq7000-qemu)	8m 36s
call-ci / test EMU (host-generic-pc)	56s
call-ci / test EMU (ia32-generic-qemu)	5m 30s
call-ci / test EMU (riscv64-generic-qemu)	2m 53s
call-ci / test HW (armv7a7-imx6ull-evk)	4m 54s
call-ci / test HW (armv7m7-imxrt106x-evk)	2m 13s
call-ci / test HW (armv7m7-imxrt117x-evk)	2m 57s
call-ci / test HW (armv7a9-zynq7000-zedboard)	5m 38s
call-ci / test HW (armv7m4-stm32l4x6-nucleo)	7m 25s
call-ci / tests-summary	29s
call-ci / send-notification	0s
	1h 2m 7s

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