[NVPTX][test] Fixup to get ptxas passing for byval-const-global.ll (#138175)

Author: AlexMaclean

llvm/test/CodeGen/NVPTX/byval-const-global.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
 ; RUN: llc < %s -mcpu=sm_70 | FileCheck %s
-; RUN: %if ptxas %{ llc < %s -mcpu=sm_70 | %ptxas-verify %}
+; RUN: %if ptxas %{ llc < %s -mcpu=sm_70 | %ptxas-verify -arch=sm_70 %}
 
 target triple = "nvptx64-nvidia-cuda"
 
@@ -30,4 +30,4 @@ define void @foo() {
   ret void
 }
 
-declare void @bar(ptr)
+declare void @bar(ptr byval(%struct))