Trivial typo fix ("mut" -> "must") in the sunxi LRADC-keys binding
documentation.
Signed-off-by: NKarsten Merker <merker@debian.org>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NChen-Yu Tsai <wens@csie.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>