thermal: tsens: Enable debug logging for tsens driver

Tsens driver supports debug capabilities to log temperature
reads done by clients for sensors and tracing time.
Enable debug logging for tsens driver.

Change-Id: Ib2628e78b7a1293e2c97e7e49363b1321e5f3cdf
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>