re PR bootstrap/56714 (Bootstrap failure libitm/local_atomic:1580:3: error: always_inline function might not be inlinable)

	PR bootstrap/56714
	* local_atomic (__always_inline): Always define our version.
	(__calculate_memory_order): Mark inline.
	(atomic_thread_fence): Ditto.
	(atomic_signal_fence): Ditto.
	(atomic_bool::atomic_flag_test_and_set_explicit): Ditto.
	(atomic_bool::atomic_flag_clear_explicit): Ditto.
	(atomic_bool::atomic_flag_test_and_set): Ditto.
	(atomic_bool::atomic_flag_clear): Ditto.

From-SVN: r199704