Add new SPLIT op Also add tests for it. Bug: 113563597 Test: NeuralNetworksTest_static with new tests Change-Id: I32cb7ccd3fae023e97d207bdfbad29c497dc4044 Merged-In: I32cb7ccd3fae023e97d207bdfbad29c497dc4044 (cherry picked from commit a85cac86b4b5d53f0173197ff0882eb70ce0b2e1)