msm: clock: Add handoff functions for most PLL clock types

This allows PLL clock state to be handed off, similar to what's
done for other branch and RCG clock types.

This currently omits a handoff function for clk_ops_hdmi_pll,
which has a significantly different implementation. It will be
added at a later time.

Change-Id: I9e74737134c515abc0baff5d990217fd136a7266
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>