gpio: tqmx86: Set proper output level for direction_output

For output-only gpios, direction_output should set proper output level.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Fixes: b868db94 ("gpio: tqmx86: Add GPIO from for this IO controller")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>