clk: qcom: Support to add hardware clocks to of_clk_hw_provider

Currently the hardware clocks are added from each clock controller
individually and are not added to the of_clk_provider. But there could be
clocks which are required by clients to be used. Add the hardware clocks to
the of_clk_hw_provide list.

Change-Id: Id88823b03ece283bf9fcb5bcaaf382210e60d0d6
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>