[SYCL][CUDA] Select only NVPTX64 device binaries#1223

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bader merged 3 commits intointel:syclfrom

fwyzard:fix_issue_1194

Mar 3, 2020

Commits on Mar 1, 2020

Commits on Mar 2, 2020

[SYCL] LIT test to check for the impact of the order of the -fsycl-targets
fwyzard
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