Add parallel linking support for BIDIRECTIONAL_SEQUENCE_{LSTM|RNN}

Change-Id: I51396f82de8dd7282db85a26b0a1be84b236b8c1
Merged-In: I51396f82de8dd7282db85a26b0a1be84b236b8c1
Fix: 138653129
Test: NNTest_static and VtsHalNeuralnetworksV1_3TargetTest
(cherry picked from commit 13c43c00596ce05cafe58771761680220c4fa24b)
3 files changed