Update icon cache version. am: 91469dec99 am: 851921ada1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/libs/systemui/+/15341063

Change-Id: I69b13fafd6e99c54d3b04c49db49b14f0bf5d332
tree: aea03753ccdc4aeb3d5914b9eb75c65ea8f5899e
  1. iconloaderlib/
  2. searchuilib/