[OpenCL:Feature] Support prefix kvcache file (setPrefixCacheFile)

[Qxinyu]

Link: https://code.alibaba-inc.com/AliNN/AliNNPrivate/codereview/28841353
GitOrigin-RevId: abdaf398c36e56e97358be95dc8270639bbc02cf

Description

Module

Type

• Feature
• Bugfix
• Perf
• Refact
• Style
• Doc
• Test
• Chore

Checklist

• Commit message follows [Module:Type] Description format
• Code compiles without errors
• Tested on relevant platform(s)
• No unrelated format or style changes included

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