sync: linux: fix tracer function_graph #39

Job	Run time
mkrootfs (canmv, yocto_rv32, rv64ilp32)	10m 34s
mkrootfs (canmv, yocto_rv32, rv64)	10m 3s
mkrootfs (canmv, fedora_rv32, rv64ilp32)	11m 20s
mkrootfs (canmv, fedora_rv32, rv64)	11m 16s
mkrootfs (canmv, fedora_rv64, rv64)	11m 17s
mkrootfs (evb, yocto_rv32, rv64ilp32)	10m 13s
mkrootfs (evb, yocto_rv32, rv64)	10m 5s
mkrootfs (evb, fedora_rv32, rv64ilp32)	11m 13s
mkrootfs (evb, fedora_rv32, rv64)	10m 44s
mkrootfs (evb, fedora_rv64, rv64)	11m 9s
	1h 47m 54s

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