test: Repair CF bridging call test for non x64 targets

The test was failing on aarch64 targets because the `notail` is
specified only for x86_64 targets.

Author: kateinoigakukun

test/IRGen/cf_objc_retainAutoreleasedReturnValue.swift

@@ -17,4 +17,4 @@ public func foo() {
 // CHECK-LABEL: define {{.*}}swiftcc void @"$s37cf_objc_retainAutoreleasedReturnValue3fooyyF"()
 // CHECK: entry:
 // CHECK:   %0 = call {{.*}}@returnsACFBridgedType()
-// CHECK:   %1 = notail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %0)
+// CHECK:   %1 = {{.*}}call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %0)