misc: mic: correct a typo

The word "Dont" is incorrect and should be replaced with "Don't".

Signed-off-by: Hu Haowen <xianfengting221@163.com>
Link: https://lore.kernel.org/r/20200330094519.17299-1-xianfengting221@163.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>