[SYCL][E2E] Use target feature in 3 tests that explicitly set the triple

[ayylol]

These tests should only build on build-only if we have either target-nvidia or target-amd enabled. Currently they build regardless of what triples are available, and this was not detected because these tests set the triple explicitly rather than through the %{sycl_target_opts} expansion.

[ayylol]

Note: the two OptionalKernelFeatures tests never actually ran because of their faulty requirements. (Requiring two backends at once/two types of devices at once in an "and" statement). This wont fix that, but it will fix incorrectly building these tests when we dont have the amd/nvidia target enabled.