alif/modmachine: Enable machine.Timer.

Signed-off-by: Damien George <damien@micropython.org>

Author: dpgeorge

ports/alif/modmachine.c

@@ -29,6 +29,7 @@
 
 #define MICROPY_PY_MACHINE_EXTRA_GLOBALS \
     { MP_ROM_QSTR(MP_QSTR_Pin),                 MP_ROM_PTR(&machine_pin_type) }, \
+    { MP_ROM_QSTR(MP_QSTR_Timer),               MP_ROM_PTR(&machine_timer_type) }, \
 
 static void mp_machine_idle(void) {
     mp_event_wait_indefinite();