ARM: dts: exynos: Enable Bluetooth support for Midas board family

Add a node for the BCM4334 Bluetooth chip on the serial bus #0 on
the Exynos4412-based Midas board family.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20201027142330.5121-3-m.szyprowski@samsung.com


Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>