nit : fix output hexadecimal format
nit : fix output hexadecimal format

Signed-off-by: Daniel Lezcano <e9fa45941f2ebe89c1b9d6c5f339ab42eadb8567@linaro.org>

yinquan529/platform-external-powerdebug,gromaudio/android_external_powerdebug,yinquan529/platform-external-powerdebug,gromaudio/android_external_powerdebug