pinctrl: at91: Fix typo 'the the' in comment

Replace 'the the' with 'the' in the comment.

Signed-off-by: Slark Xiao <slark_xiao@163.com>
Link: https://lore.kernel.org/r/20220722092419.77052-1-slark_xiao@163.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>