DM: small fixes

Author: deanm1278

adafruit_neotrellis/multitrellis.py

@@ -81,6 +81,7 @@ def sync(self):
                 available = _t.count
                 sleep(.0005)
                 if available > 0:
+                    available = available + 2
                     buf = _t.read_keypad(available)
                     for raw in buf:
                         evt = KeyEvent(_seesaw_key((raw >> 2) & 0x3F), raw & 0x3)

adafruit_neotrellis/neotrellis.py

@@ -89,6 +89,7 @@ def sync(self):
         available = self.count
         sleep(.0005)
         if available > 0:
+            available = available + 2
             buf = self.read_keypad(available)
             for raw in buf:
                 evt = KeyEvent(_seesaw_key((raw >> 2) & 0x3F), raw & 0x3)