Enforcing a primary+leaf configuration does not walk for all the cases.
Some clocks (msm8996 CPU) have more muxes to be powered on. Other (MCCC)
do not require GCC at all. Make clock measurement more versatile by
reworking GCC + optional leaf into a chain of muxes.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
It looks like post_div_val is a property of debug_mux rather than the
clock itself. It is equal for all the clocks being set. So, set it on a
mux-by-mux bases.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
