serial: sirf: fix the typo for rts/cts gpio

fix the typo in commit 2eb5618de87927e54 which uses two
gpios for rts/cts.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed