Add lint baseline to address NewApi errors am: 9dbe0222c7

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/systemui/+/1675571

Change-Id: I26839acf3e0784a7afacd434bcdea8a2dd26849d
tree: 90974e8605ad489989b702f550b7f5318e0c23fe
  1. iconloaderlib/