clk: qcom: gcc: limit GPLL0_AO_OUT operating frequency

Limit the GPLL0_AO_OUT_MAIN operating frequency as per its hardware
specifications.

Co-developed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Ondrej Kubik <ondrej.kubik@canonical.com>