When CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y, it is no need to create
kthread cryptomgr_test, which almost do nothing but crypto_alg_tested().
Just call crypto_alg_tested() in cryptomgr_schedule_test() directly.
Save boot time about 7ms on rk3126-bnd-d708 board.
Change-Id: If465f8419dba4ea955df157b3405f3267a96c7d6
Signed-off-by: Tao Huang <huangtao@rock-chips.com>