Factor out msm_set/get_clock_rate_for_bus_mode for it's later
use in changing the tuning sequence for selecting HS400
bus speed mode.
Signed-off-by: NRitesh Harjani <riteshh@codeaurora.org>
Tested-by: NJeremy McNicoll <jeremymc@redhat.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>