clk: qcom: Add support to convert the clock rate to KHz

Before sending the RPM clock rate request, rate should
be in KHz so fixing the same by converting the rate
to KHz and also fix some clock ids.

Change-Id: I3fb59f96b419bdb91f9a04cc47ab1c23d15dc74b
Signed-off-by: Amit Nischal <anischal@codeaurora.org>