Add LICENSE and OWNERS files am: 18b1b2ee6c am: faa4fa5566

Original change: https://android-review.googlesource.com/c/platform/external/sg3_utils/+/2315503

Change-Id: Ic0506a7f08a30207094f8f3fb237d5b6360a160c
Signed-off-by: Automerger Merge Worker <[email protected]>