Merge tag 'clk-meson-dt-v5.6-1' of https://github.com/BayLibre/clk-meson into v5...

Update Amlogic meson8 bindings:
 - Update meson8's bindings to take a reference to the crytal clock
   from DT

* tag 'clk-meson-dt-v5.6-1' of https://github.com/BayLibre/clk-meson:
  dt-bindings: clock: meson8b: add the clock inputs
  dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding