Add 32-bit compat code for AIO kevent flags introduced in revision 230857.

sys/compat/freebsd32/freebsd32_signal.h

@@ -92,6 +92,7 @@ struct sigevent32 {
 			uint32_t _function;
 			uint32_t _attribute;
 		} _sigev_thread;
+		unsigned short	_kevent_flags;
 		uint32_t __spare__[8];
 	} _sigev_un;
 };

sys/kern/vfs_aio.c

@@ -2706,6 +2706,7 @@ convert_sigevent32(struct sigevent32 *sig32, struct sigevent *sig)
 		break;
 	case SIGEV_KEVENT:
 		CP(*sig32, *sig, sigev_notify_kqueue);
+		CP(*sig32, *sig, sigev_notify_kevent_flags);
 		PTRIN_CP(*sig32, *sig, sigev_value.sival_ptr);
 		break;
 	default: