Add FP16 to hwasan-postsubmit am: cad49b6d5a am: d91445dc42 am: f6ebfdb852

Original change: https://android-review.googlesource.com/c/platform/external/FP16/+/2032272

Change-Id: I7ab0f8f3bbd52e031509a1364c5b3fb397edbe24