[PATCH v5.1 2/2] ARM: dts: meson6: use stable UART bindings

Neil Armstrong [off-list ref] writes:

The UART bindings needs specifying a SoC family, use the meson6 family
for the UART nodes like the other nodes.
Switch to the stable UART bindings for meson6 by adding a XTAL node and
using the proper compatible strings.

Signed-off-by: Neil Armstrong <redacted>

Applied to v4.14/dt,

Thanks,

Kevin