msm: synx: remove synx handle details from logging

Change removes logging synx object handle details
through debugfs entry to avoid potential UAF.
Details are used seldom, and only for debugging
purposes. Change will not affect the driver
functionalities.

Change-Id: I8fb8c2bb4a7db9141e61e02ab32d6753516400fb
Signed-off-by: Sumukh Hallymysore Ravindra <quic_shallymy@quicinc.com>