soc: qcom: Vote for bus scaling before enabling regulators and clocks

RPMh can prevent clocks from turning if the bus is not properly scaled yet.
Reorder bus scaling votes to happen before enabling regulators or clocks.

Change-Id: I22bc750951f1b0fa75921944713738b945f597d0
Signed-off-by: Kyle Yan <kyan@codeaurora.org>