staging: wilc1000: rename pstrHiddenNetworkInfo in struct hidden_network

This patch renames pstrHiddenNetworkInfo to net_info to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>