[AMD] Reorganize hip-related header files in sgl-kernel (#9320)

sgl-kernel/setup_rocm.py

@@ -72,6 +72,9 @@ if amdgpu_target not in ["gfx942", "gfx950"]:
     )
     sys.exit(1)
 
+fp8_macro = (
+    "-DHIP_FP8_TYPE_FNUZ" if amdgpu_target == "gfx942" else "-DHIP_FP8_TYPE_E4M3"
+)
 
 hipcc_flags = [
     "-DNDEBUG",
@@ -80,10 +83,10 @@ hipcc_flags = [
     "-Xcompiler",
     "-fPIC",
     "-std=c++17",
-    "-D__HIP_PLATFORM_AMD__=1",
     f"--amdgpu-target={amdgpu_target}",
     "-DENABLE_BF16",
     "-DENABLE_FP8",
+    fp8_macro,
 ]
 
 ext_modules = [