DO NOT MERGE Add LOCAL_LICENSE_KINDS to packages/apps/WallpaperPicker2

Added SPDX-license-identifier-Apache-2.0 to:
  Android.mk

Bug: 68860345
Bug: 151177513
Bug: 151953481

Test: m all

Exempt-From-Owner-Approval: janitorial work
Change-Id: Ide9f7958a1de05fa14e98920cd02a91ba4cf69ec
1 file changed