ASoC: qdsp6: qdsp6: q6prm: handle clk disable correctly

Q6PRM clks need to be disabled using PRM_CMD_RELEASE_HW_RSC dsp command
rather then using PRM_CMD_RSP_REQUEST_HW_RSC cmd with rate set to zero.

DSP will throw errors if we try to disable the clock using existing code.

Fix this by properly handling the clk release.

Fixes: 9a0e5d6f

 ("ASoC: qdsp6: audioreach: add q6prm support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211116114721.12517-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>