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
diff --git a/Power.cpp b/Power.cpp
index bbdd924..cb16c92 100644
--- a/Power.cpp
+++ b/Power.cpp
@@ -144,7 +144,8 @@
 }
 
 ndk::ScopedAStatus Power::setBoost(Boost type, int32_t durationMs) {
-    LOG(INFO) << "Power setBoost: " << static_cast<int32_t>(type) << ", duration: " << durationMs;
+    LOG(VERBOSE) << "Power setBoost: " << static_cast<int32_t>(type)
+                 << ", duration: " << durationMs;
     return ndk::ScopedAStatus::ok();
 }