add gr712rc support - single core #1329

Job	Run time
call-ci / build (armv7a7-imx6ull-evk)	1m 9s
call-ci / build (armv7a9-zynq7000-qemu)	1m 17s
call-ci / build (armv7a9-zynq7000-zedboard)	1m 40s
call-ci / build (armv7a9-zynq7000-zturn)	1m 45s
call-ci / build (armv7m4-stm32l4x6-nucleo)	1m 50s
call-ci / build (armv7m7-imxrt105x-evk)	1m 46s
call-ci / build (armv7m7-imxrt106x-evk)	1m 50s
call-ci / build (armv7m7-imxrt117x-evk)	1m 47s
call-ci / build (host-generic-pc)	1m 7s
call-ci / build (ia32-generic-pc)	1m 49s
call-ci / build (ia32-generic-qemu)	1m 47s
call-ci / build (riscv64-generic-qemu)	51s
call-ci / build (riscv64-generic-spike)	51s
call-ci / build (sparcv8leon3-gr716-mini)	1m 37s
call-ci / test HW (armv7a7-imx6ull-evk)	4m 27s
call-ci / test HW (armv7m7-imxrt106x-evk)	2m 20s
call-ci / test EMU (armv7a9-zynq7000-qemu)	10m 26s
call-ci / test HW (armv7m7-imxrt117x-evk)	3m 4s
call-ci / test EMU (host-generic-pc)	1m 7s
call-ci / test HW (armv7a9-zynq7000-zedboard)	7m 6s
call-ci / test EMU (ia32-generic-qemu)	6m 33s
call-ci / test HW (armv7m4-stm32l4x6-nucleo)	7m 44s
call-ci / test EMU (riscv64-generic-qemu)	2m 58s
call-ci / tests-summary	26s
call-ci / send-notification	0s
	1h 7m 17s

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