add timeout for Hook
add timeout for Hook

Signed-off-by: Ma Shimiao <4511f16e942ad3568742865d09c9060c1d8bebb9@cn.fujitsu.com>

opencontainers/runtime-spec,wking/opencontainer-specs,laijs/specs,wking/opencontainer-runtime-spec,hqhq/specs,hqhq/runtime-spec,cloudfoundry-incubator/specs,ujuc/specs,opencontainers/specs,jonboulle/specs,vbatts/specs