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f7bfe5e7 - [ROCm] temporary workaround till __double2half support enabled in HIP (#3236)

[ROCm] temporary workaround till __double2half support enabled in HIP (#3236) * temporary WAR workaround till __double2half support enabled in HIP * workaround only for hipcc --------- Co-authored-by: Logan Adams <114770087+loadams@users.noreply.github.com>