[SYCL][Driver] Need to duplicate options to be passed to both host and device compilers.

[kbobrovs]

If it is needed to pass the same option from driver to both host and device compilers, then it must be added two-times - see clang/lib/Driver/ToolChains/Clang.cpp, for example:
4124:CmdArgs.push_back("-fsycl");
...
6150:CmdArgs.push_back("-fsycl");

This is quite error prone and inconvenient - should be automated: option placed in one place, driver does the duplication itself.

[mdtoguchi]

There have been a few enhancements in this area which solve this issue:

• [Driver][NFC] Cleanup some option setting for SYCL offload #3542 // general refactor of opt settings in Clang.cpp
• [SYCL] Rework the way we handle SYCL -cc1 arguments. #3259 // use -fsycl-is-host -fsycl-is-device and not use -fsycl with -cc1