[PORT FROM R2][REVERT ME]n_gsm: add dedicated traces in MUX for APIMR issues

[PORT FROM R2][REVERT ME]n_gsm: add dedicated traces in MUX for APIMR issues

BZ: 25958

This patch is an update for the MUX driver in the goal to add
dedicated traces to have input for the APIMR issues.

Change-Id: I040ea3f27ad0816d724b16dc7ecb887051ce065d
Orig-Change-Id: I2c9a660e6c48153dcd680bd6b8db8d1683cc3f7a
Signed-off-by: Guillaume Lucas <guillaumex.lucas@intel.com>
Reviewed-on: http://android.intel.com:8080/41335
Reviewed-by: Predon, Frederic <frederic.predon@intel.com>
Reviewed-by: Lebsir, SamiX <samix.lebsir@intel.com>
Tested-by: Lebsir, SamiX <samix.lebsir@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>