usb: ci13xxx_msm_hsic: Set USB HSIC Core related clk rate before using

It is must to set peripheral's clock rate before using it even it is
having single clock frequency to use. Hence set USB HSIC core related
clocks' rate before using and enabling it.

Change-Id: Iec32fdd774a32c13917176255163dd02383c1e55
Signed-off-by: Mayank Rana <mrana@codeaurora.org>