msm: npu: Allow set clock rate for llm_temp_clk and llm_curr_clk

This change is to allow clock rate change for llm_temp_clk and
llm_curr_clk.

Change-Id: Ia4ff48dd877f49e0ff0d55a004cae10ef8cf1fb9
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>