arm64: dts: amlogic: meson-gxl-s905d-sml5442tw: drop invalid clock-names property

Fixes:
bluetooth: 'clock-names' does not match any of the regexes: 'pinctrl-[0-9]+'

Link: https://lore.kernel.org/r/20230124-b4-amlogic-bindings-fixups-v1-5-44351528957e@linaro.org


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>