dsp: lsm: don't print physical address of invalid lsm client pointer

Function q6lsm_get_session_id_from_lsm_client will print out the
physical address of a lsm client pointer in error message when it
fails to find the matching lsm client. This is not needed because
the address information is redundant and might cause potential
issue when a lsm client is already invalid.

Change-Id: If8c38b566c839c4b45d98e79802d0fd6efb5bdb9
Signed-off-by: Xiaoyu Ye <benyxy@codeaurora.org>