Merge "Disallow creation of virtual sensors with non-positive type." into udc-dev am: 21fc8ab7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21798420



Change-Id: I4f769f6d0d7df9e8eef13479852dad44026fe133
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>