rename testcase

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
refactor hugepage size validator
update test_cycle with pthread
test_cycle: make code more lock contending
test_cycle: make code more lock contending 2
add testcase for thp

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>