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: Ice3546c63c6d48f286398984d0ad180afd969346
Signed-off-by: Sumukh Hallymysore Ravindra <quic_shallymy@quicinc.com>