tree 49720f0a6dc384aac17a558091e9504e93c2ae57
parent 298c49e4f08644f4478380a4e75d63207e2c671c
author Badhri Jagan Sridharan <badhri@google.com> 1542411562 -0800
committer Badhri Jagan Sridharan <badhri@google.com> 1544492247 -0800

Log UsbDeviceAttached events for Audio devices

UsbDeviceAttached is logged when the device has an audio interface.
Info such as VID, PID, whether the device has hid or mass storage
interface and the duration for which the usb device was connected
would be logged as well.

Bug: 118783261
Test: Manually tested by running: adb shell cmd stats print-logs,
    adb logcat | grep statsd | grep \(77\)
Change-Id: I57bbfd22ef377553daa113968fe53c4fe0f8e4d2