Introduce interrupt handler for smp2p ready interrupt to
handle start completion. Move the proxy votes for clocks
and regulators to the handover interrupt context.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
[bjorn: Only proxy unvote if handover irq has not fired]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>