add AMD_ROCM as part of get_compile_options (#3790)

Summary:
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/3790

Comment from ramilbakhshyiev https://www.internalfb.com/diff/D61674490?dst_version_fbid=359297527230868&transaction_fbid=8025001410919172

Reviewed By: ramilbakhshyiev

Differential Revision: D61680186

fbshipit-source-id: 2b6d5803e620b36878b669e617253c875562c30f

faiss/gpu/GpuIndex.cu

@@ -537,6 +537,10 @@ struct InitGpuCompileOptions {
 #ifdef USE_NVIDIA_RAFT
         gpu_compile_options += "NVIDIA_RAFT ";
 #endif
+
+#ifdef USE_AMD_ROCM
+        gpu_compile_options += "AMD_ROCM ";
+#endif
     }
 };