Camera: Initialize torch strength variables.

Initialize the torch strength variables in DeviceInfo.Currently they are
initialized in its inner class DeviceInfo3.

bug: 200174275

Test: Flashlight CTS on cf.
Change-Id: I8aaecafd0bef9f2f97b5c8894e4de3374e1d3c61
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
index 7d13941..b03ca62 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.h
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -552,8 +552,10 @@
                     mName(name), mId(id), mVersion(version), mProviderTagid(tagId),
                     mIsLogicalCamera(false), mResourceCost(resourceCost),
                     mStatus(hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT),
-                    mParentProvider(parentProvider), mHasFlashUnit(false),
-                    mSupportNativeZoomRatio(false), mPublicCameraIds(publicCameraIds) {}
+                    mParentProvider(parentProvider), mTorchStrengthLevel(0),
+                    mTorchMaximumStrengthLevel(0), mTorchDefaultStrengthLevel(0),
+                    mHasFlashUnit(false), mSupportNativeZoomRatio(false),
+                    mPublicCameraIds(publicCameraIds) {}
             virtual ~DeviceInfo();
         protected:
             bool mHasFlashUnit; // const after constructor