power: Reduce log level of setBoost() method to VERBOSE.

This avoids flooding the log, when using the device.
I android.hardware.power-service-qti: Power setBoost: 0, duration: 351
I android.hardware.power-service-qti: Power setBoost: 1, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 1, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 1119
I android.hardware.power-service-qti: Power setBoost: 1, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 0
I android.hardware.power-service-qti: Power setBoost: 1, duration: 0
I android.hardware.power-service-qti: Power setBoost: 0, duration: 1492
I android.hardware.power-service-qti: Power setBoost: 1, duration: 0

Change-Id: I4e3c9ba79412875947593ea49739c3c30eabc429
1 file changed