clk: qcom: smd-rpm: Add a way to define bus clocks with rate and flags

clk: qcom: smd-rpm: Add a way to define bus clocks with rate and flags

Some clocks, at least PCNoC (a.k.a CNoC_PERIPH) need to be always on,
at least on the ACTIVE side, regardless of whether they're used for bus
scaling or not.

Introduce a new macro to preset non-INT_MAX rates and clk flags to make
it easy and work implicitly through the CCF.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230731-topic-pcnoc-v1-1-452dd36d11d7@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>