disable flash_attn during export internvl2 #1105
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What does this PR do?
InternVL2 models forces flash attention if it is available in user environment that may breaks model export. In the same time, if flash attn disabled, it selects eager attention for some cases, that gives suboptimal perf on openvino side. Updated model patching for sdpa attention realization as main path
Fixes #1073
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