Fix wificond permissions for hikey

Newer kernels apparently introduce a new SELinux label
"netlink_generic_socket".

AOSP is missing some patches for ioctl whitelisting and
it was suggested we add unpriv_socket_ioctls as a stopgap.

Bug: 31226503
Change-Id: Ie4dd499925f74747c0247e5d7ad0de0f673b5ed2