XFAIL CodeGen/NVPTX/atomics-with-semantics.ll for now (#28523)

Opened #18068 to track the porting.

Author: jsji

llvm/test/CodeGen/NVPTX/atomics-with-semantics.ll

@@ -1,6 +1,7 @@
 ; RUN: llc < %s -march=nvptx -mcpu=sm_70 | FileCheck %s
 ; RUN: llc < %s -march=nvptx64 -mcpu=sm_70 | FileCheck %s
-
+; XFAIL: *
+; https://github.com/intel/llvm/issues/18068
 ; CHECK-LABEL: .func test_atomics_scope(
 define void @test_atomics_scope(float* %fp, float %f,
                                 double* %dfp, double %df,