clk: qcom: gcc: Add global clock controller driver for QCS405

Add the clocks supported in global clock controller which clock the
peripherals like BLSPs, SDCC, USB, MDSS etc. Register all the clocks
to the clock framework for the clients to be able to request for them.

Change-Id: I6e88109c8221023ddae7a0b17051b00d233f65c4
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>