Fix invalid tests for relaxed computation.

Modify test cases in specs that are out of range of half-precision
floating-point representation.

Generate tests and vts tests.

Bug: 111768023

Test: NeuralNetworksTest_static
Change-Id: I82aaf304368d1a0ef863f3811d3585f02901d353
Merged-In: I82aaf304368d1a0ef863f3811d3585f02901d353
(cherry picked from commit 2f4b8734)