[Testsuite] Turn on 64-bit-vector tests for AArch64.

	* lib/target-supports.exp (check_effective_target_vect64): Add AArch64.

From-SVN: r229092

gcc/testsuite/ChangeLog

+2015-10-20  Alan Lawrence  <alan.lawrence@arm.com>
+
+	* lib/target-supports.exp (check_effective_target_vect64): Add AArch64.
+
 2015-10-20  Marek Polacek  <polacek@redhat.com>
 
 	PR c/67964

gcc/testsuite/lib/target-supports.exp

@@ -4769,6 +4769,7 @@ proc check_effective_target_vect64 { } {
         if { ([istarget arm*-*-*]
 	      && [check_effective_target_arm_neon_ok]
 	      && [check_effective_target_arm_little_endian])
+	     || [istarget aarch64*-*-*]
              || [istarget sparc*-*-*] } {
            set et_vect64_saved 1
         }