misc: reduce logspam

* Drop a lot of spammy things to DEBUG

Change-Id: Iec4bfe0eb60678e2317e556cac98a77737eec0cc
usb: gadget: Make HTC USB_MSM_OTG available to other devices

Change-Id: Ib8fa66c9c098eea2a8ecf154617ae02451f578ea