ThermalZoneController: Use DVLOG instead of DLOG for pure debug logs

BUG=None
TEST=None

Change-Id: I7cbed54e0e944ea2c086a0c6111a51a96bf76d03
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-on: https://chrome-internal-review.googlesource.com/205570
Reviewed-by: Aaron Kemp <kemp@google.com>
Tested-by: Matthias Kaehlcke <mka@google.com>
Commit-Queue: Matthias Kaehlcke <mka@google.com>
Trybot-Ready: Matthias Kaehlcke <mka@google.com>
1 file changed