[LSC] Add LOCAL_LICENSE_KINDS to packages/apps/Launcher3

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: I7114a8abc76d6aff0357e15e65b5a6d909f7cd35
Merged-in: I069f0fcd0652dcfd3e9c539e1f9bcb4c9225a10b