test: fix test on Windows

When building on Windows, the default target is Windows.  Windows on ARM does
not support ARM mode compilation, resulting in test failures.  Simply specify a
triple to ensure that we are testing the correct behaviour.

llvm-svn: 208340
diff --git a/llvm/test/CodeGen/ARM/func-argpassing-endian.ll b/llvm/test/CodeGen/ARM/func-argpassing-endian.ll
index 7c95752..b32b09b 100644
--- a/llvm/test/CodeGen/ARM/func-argpassing-endian.ll
+++ b/llvm/test/CodeGen/ARM/func-argpassing-endian.ll
@@ -1,5 +1,5 @@
-; RUN: llc -verify-machineinstrs < %s -march=arm -mattr=v7,neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-LE %s
-; RUN: llc -verify-machineinstrs < %s -march=armeb -mattr=v7,neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-BE %s
+; RUN: llc -verify-machineinstrs < %s -mtriple=arm-eabi -mattr=v7,neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-LE %s
+; RUN: llc -verify-machineinstrs < %s -mtriple=armeb-eabi -mattr=v7,neon | FileCheck --check-prefix=CHECK --check-prefix=CHECK-BE %s
 
 @var32 = global i32 0
 @vardouble = global double 0.0
@@ -121,4 +121,3 @@
     ret void
 }
 
-