Add delay for speech codes prediction
@zhehuaichen > Thank you so much! Can u attach a working recipe based on the same baseline as mine before merging /lustre/fs12/portfolios/llmservice/users/zhehuaic/works/mod_speech_llm/scripts/s2s_salm_1ab_d1r_12fps_duplex4_data_scalec_mistral.sh

Sure - here it is with a delay of 5 tokens: /home/kevinhu/s2s/s2s_salm_1ab_d1r_12fps_duplex4_data4b_mistral_1a_delay5.sh great. click the merge button when you verify that your recipe can train  > great. click the merge button when you verify that your recipe can train

Already training :)
# What does this PR do ?

Add delay to speech codes prediction.