hostinet: fix not specifying family field
hostinet: fix not specifying family field

Creating sockets by hostinet with VFS2 fails due to triggerring a
seccomp violation. In essence, we fails to pass down the field of
family.

We fix this by passing down this field, family.

Fixes #3141

Signed-off-by: Jianfeng Tan <5c9cbcdc6e9c03825adb30b0700a6649b56823d7@antfin.com>

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor