fix typo

Author: robtaylor

amaranth_orchard/io/gpio.py

@@ -66,7 +66,7 @@ def __init__(self, *, pin_count, addr_width=4, data_width=8, input_stages=2):
             "pins": Out(self.Signature(pin_count)),
             "alt_mode": Out(unsigned(pin_count)),
         })
-        self.bus.qmemory_map = self._gpio.bus.memory_map
+        self.bus.memory_map = self._gpio.bus.memory_map
 
     def elaborate(self, platform):
         m = Module()