Enable Phi2-2.7b to do benchmarking in genai #589

Job	Run time
cpp-beam_search_causal_lm-Qwen1_5-7B-Chat	5m 4s
cpp-beam_search_causal_lm-Phi-2	4m 16s
cpp-beam_search_causal_lm-notus-7b-v1	8m 28s
cpp-beam_search_causal_lm-Qwen-7B-Chat	9m 46s
cpp-beam_search_causal_lm-ubuntu	7m 31s
cpp-beam_search_causal_lm-windows	13m 47s
cpp-greedy_causal_lm-redpajama-3b-chat	9m 20s
cpp-greedy_causal_lm-ubuntu	4m 8s
cpp-Phi-1_5	2m 48s
cpp-speculative_decoding_lm-ubuntu	12m 27s
	1h 17m 35s

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