staging: ks7010: use long preamble as default

I had a problem connecting to a network with a short preamble, so let's
make the safer option the default.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed