clk: qcom: clk-debug: List regs only if respective clk is qcom-regmap clk

List register ops is provider supported hence can not be
called on clk framework clks. For example: xo-board,sleep-clk
are fixed clock.

List/print only those clocks who are qcom-regmap clks.
Cast member structure only if clk_hw is valid clk_regmap clk.

Change-Id: Id66856f45166a32e37ea7e477f80360ab020ab25
Signed-off-by: Vivek Aknurwar <viveka@codeaurora.org>