[libomptarget] Fix CUDA plugin build regression

After 3ecd38c8e, the Handler.getELFObjectFile routine is no
longer available.  Call ELF64LEObjectFile::create directly,
which should always be suitable for CUDA images.

GitOrigin-RevId: b64482e23eefaef7738fde35d0b7c4174aaa6597
1 file changed