Add Float16 support to CAST

Fix: 118608933
Test: NeuralNetworksTest_static
Change-Id: I95fc7a48fd64c5260d1b7a578d4e8c8831fa1a27
Merged-In: I95fc7a48fd64c5260d1b7a578d4e8c8831fa1a27
(cherry picked from commit 80ab50ab1869c607eae9abedd546df0463a90219)
9 files changed