[automerger skipped] LSTM: require input layer norm weights to be omitted in case CIFG is used. am: e465f8e659
am: 60cb34becd -s ours
am skip reason: change_id I57bc578606132a2c44c71ab63dd7645dcc001302 with SHA1 0480af9aa8 is in history

Change-Id: I553e5c51fdce7a08277705f6ecac2170fad4647b