dt-bindings: clock: simplify qcom,gcc-apq8064 Documentation

Simplify qcon,gcc-apq8064 Documentation by using qcom,gcc.yaml as a
template and remove the compatible from qcom,gcc.yaml

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220226135235.10051-3-ansuelsmth@gmail.com