Sets bias quant scale in QLSTM test to 0 as it's unused.

Bug: 155421116

Test: NeuralNetworksTest_static

Change-Id: I434d70e30b137a37febfab83127d79f9a6ecbae6
Merged-In: I434d70e30b137a37febfab83127d79f9a6ecbae6
(cherry picked from commit e0a30f75c2c8eea8df0d92c750a0d634c5ca9ed4)
4 files changed