Support arm64.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13843 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/tests/arch_test.c b/tests/arch_test.c
index 849af6e..d1a337b 100644
--- a/tests/arch_test.c
+++ b/tests/arch_test.c
@@ -60,6 +60,9 @@
 #elif defined(VGP_arm_linux)
    if ( 0 == strcmp( arch, "arm" ) ) return True;
 
+#elif defined(VGP_arm64_linux)
+   if ( 0 == strcmp( arch, "arm64" ) ) return True;
+
 #elif defined(VGP_mips32_linux)
    if ( 0 == strcmp( arch, "mips32" ) ) return True;