Merge "usb: remove duplication in descriptor reading code." am: b612fc8f4f am: 2a4deb3988 am: 759ccebf47

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1954916

Change-Id: I11d84e013b6c741002b2c7d2722c8857db8ad29b