Fix issues with feedback logs

There were issues which prevented the logs from being included into
feedback reports.
First the scripts used to write to /debugd/touchpad, which used to
work in R35, for some reason doesn't work after R36. This is fixed by
changing the log target to /tmp/touchpad.
Also there was an unecessary error message generated by trying to
chown the preferences folder, which should only happen when the script
is run as root, to prevent the folder being owned by root.
The compressed data also included error messages from tar about
including absolute filenames, which are being supressed with this
change.

BUG=chromium:384454
TEST=file feedback report and check the uploaded system_logs

Change-Id: I30136ee78c7d62a0704658fce694ae41396f3e2b
Reviewed-on: https://chromium-review.googlesource.com/204053
Reviewed-by: Charles Mooney <charliemooney@chromium.org>
Commit-Queue: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
3 files changed