sleepd : Changed free text logging information to KV Pair

:Release Notes:
Changed free text logging information to KV Pair

:Detailed Notes:
Changed free text logging information to KV Pair

:Testing Performed:
Tested on official build and logs appear
in KV pairs in /var/log/messages.

:QA Notes:

:Issues Addressed:
[GF-44127] Sleepd logging valuable information in free text fields

Open-webOS-DCO-1.0-Signed-off-by: Premalatha MVS <premalatha.mvs@lge.com>

Change-Id: I01ad828c54e17bd455877022ac19a0207577db61
Reviewed-on: https://g2g.palm.com/3783
Reviewed-by: Build Verification
Reviewed-by: Premalatha MVS <premalatha.mvs@lge.com>
Tested-by: Premalatha MVS <premalatha.mvs@lge.com>
Reviewed-by: Keith Derrick <keith.derrick@lge.com>