Fix sigmoid and softmax tests and implementation.

  - CPU executor now checks both the scale and offset for the
    output Shape.
  - The golden references and output range for the tests are updated.

Bug: 63905942
Test: mm
Test: NeuralNetworksTest pass
Change-Id: I9e892ae0de8ea17298dbb7edb96036e1d30c84fb
11 files changed
tree: c172bea4ce705fe36cd59a688380d8cfd8561732
  1. nn/
  2. Android.bp