libct/cg: support hugetlb rsvd #5195

Job	Run time
cross-i386	4m 9s
cross-i386 (runc_nodmz)	4m 3s
test (ubuntu-20.04, 1.20.x, rootless, -race)	7m 18s
test (ubuntu-20.04, 1.20.x, rootless)	7m 12s
test (ubuntu-20.04, 1.20.x, -race)	7m 3s
test (ubuntu-20.04, 1.20.x)	6m 20s
test (ubuntu-20.04, 1.21.x, rootless, -race)	7m 36s
test (ubuntu-20.04, 1.21.x, rootless)	7m 10s
test (ubuntu-20.04, 1.21.x, -race)	7m 4s
test (ubuntu-20.04, 1.21.x)	6m 48s
test (ubuntu-20.04, 1.21.x, criu-dev)	7m 11s
test (ubuntu-22.04, 1.20.x, rootless, -race)	11m 17s
test (ubuntu-22.04, 1.20.x, rootless, -race, runc_nodmz)	10m 50s
test (ubuntu-22.04, 1.20.x, rootless)	10m 53s
test (ubuntu-22.04, 1.20.x, rootless, runc_nodmz)	12m 4s
test (ubuntu-22.04, 1.20.x, -race)	4m 53s
test (ubuntu-22.04, 1.20.x, -race, runc_nodmz)	5m 3s
test (ubuntu-22.04, 1.20.x)	4m 18s
test (ubuntu-22.04, 1.20.x, runc_nodmz)	4m 19s
test (ubuntu-22.04, 1.21.x, rootless, -race)	11m 51s
test (ubuntu-22.04, 1.21.x, rootless, -race, runc_nodmz)	11m 10s
test (ubuntu-22.04, 1.21.x, rootless)	10m 52s
test (ubuntu-22.04, 1.21.x, rootless, runc_nodmz)	10m 38s
test (ubuntu-22.04, 1.21.x, -race)	5m 6s
test (ubuntu-22.04, 1.21.x, -race, runc_nodmz)	5m 26s
test (ubuntu-22.04, 1.21.x)	4m 22s
test (ubuntu-22.04, 1.21.x, runc_nodmz)	4m 46s
test (ubuntu-22.04, 1.21.x, criu-dev)	5m 25s
	3h 25m 7s

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