Create chromium_bind_tcp_unreserved_ports boolean

Some extensions for chromium need to be able to listen on tcp ports.
This adds a boolean (default off) to allow binding to unreserved tcp
ports.

Signed-off-by: Jason Zaman <jason@perfinion.com>
dontaudits for chromium

When chromium_read_system_info is enabled, chromium tries to getattr
on a lot of files in /dev. They are not required and this quiets
chromium a bit more.

Signed-off-by: Jason Zaman <jason@perfinion.com>