Revert "audio:sst:print IPC messages using pr_info"

Revert "audio:sst:print IPC messages using pr_info"

BZ: 31581

IPC messages are exchanged between SST driver and LPE during audio
activity. These IPC messages are the main pulse of audio activity.
Printing these messages using pr_info helps us to debug issues
reported from field.

Old-Change-Id: I6180e6f8cbd23ed443b15b399fc25d90204f44be
Signed-off-by: Ramesh Babu K V <ramesh.babu@intel.com>
This reverts commit 6b56c8e8aed1b6942fd921115463f34558f8a511
Change-Id: Ia02ada85b76a692554940ef0a293c8799a03251d
Reviewed-on: http://android.intel.com:8080/48174
Reviewed-by: Kappel, LaurentX <laurentx.kappel@intel.com>
Tested-by: Kappel, LaurentX <laurentx.kappel@intel.com>