clk: qcom: clk-debug: Add support for debug clock API's

Add support for qcom_clk_dump and qcom_clk_bulk_dump API's
which can be used by the clients to dump the registers
associated with the clock and it's parents.

Change-Id: Iea7f30bb4e789e41dbae41b88514ffd53c136174
Signed-off-by: Jagadeesh Kona <jkona@codeaurora.org>