ARM: dts: exynos: Fix audio (microphone) routing on Odroid XU3

commit 9b23e1a3e8fde76e8cc0e366ab1ed4ffb4440feb upstream.

The name of CODEC input widget to which microphone is connected through
the "Headphone" jack is "IN12" not "IN1". This fixes microphone support
on Odroid XU3.

Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>