neuralnetworks_sample_sl_driver: Roll new prebuilts am: 91b18aca28

Original change: https://android-review.googlesource.com/c/platform/packages/modules/NeuralNetworks/+/2841758

Change-Id: Ie5df595359fc9dc68bb8d6d484d78a3428c017d5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>