Make it clear that it is a failure if the cpufreq driver was unable to
register as a cooling device. Makes it easier to find in logs and
grepping for words like fail, err, warn.
Signed-off-by: NAmit Kucheria <amit.kucheria@linaro.org>
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>