clk: msm: alpha-pll: Add list register support in dyna ops

Add support to print the relevant registers in the debugfs entries
for alpha pll clocks using dyna_alpha_pll as .ops.

Change-Id: I32fb396544d3045ff49a8e43222448c459641d63
Signed-off-by: Jaydeep Sen <jsen@codeaurora.org>