[NVPTX] Fix NVPTX builder test failures.

Fixed broken 'pr126337.ll' NVPTX related test (by #149393)

Author: vvereschaka

llvm/test/CodeGen/NVPTX/pr126337.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
 ; RUN: llc < %s -mtriple=nvptx64 -mcpu=sm_70 | FileCheck %s
-; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_70 | %ptxas-verify %}
+; RUN: %if ptxas %{ llc < %s -mtriple=nvptx64 -mcpu=sm_70 | %ptxas -arch=sm_70 -c - %}
 
 ; This IR should compile without triggering assertions in LICM
 ; when the CopyToReg from %0 in the first BB gets eliminated