Support soft nms in BOX_WITH_NMS_LIMIT.

Fixes: 128923996
Test: NeuralNetworksTest_static
Change-Id: Ib7cc2869c44929609cf6d1c1683a787cef3549e3
Merged-In: Ib7cc2869c44929609cf6d1c1683a787cef3549e3
(cherry picked from commit 0cd426588e8905d17de05113b28682f803fbbb28)
96 files changed