ASoC: qcom: Constify APR/GPR result structs

ASoC: qcom: Constify APR/GPR result structs

APR and GPR callbacks receive pointer to const response packet which
holds the response result.  That result should not be modified by
callback, so make it pointer to const for code safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20251130-asoc-apr-const-v1-4-d0833f3ed423@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>