fix incorrect init order

Author: ladyada

adafruit_epd/il0373.py

@@ -110,10 +110,9 @@ def power_up(self):
         self.command(_IL0373_CDI, bytearray([0x37]))
         self.command(_IL0373_PLL, bytearray([0x29]))
         _b1 = self._width & 0xFF
-        _b2 = (self._width >> 8) & 0xFF
+        _b2 = (self._height >> 8) & 0xFF
         _b3 = self._height & 0xFF
-        _b4 = (self._height >> 8) & 0xFF
-        self.command(_IL0373_RESOLUTION, bytearray([_b1, _b2, _b3, _b4]))
+        self.command(_IL0373_RESOLUTION, bytearray([_b1, _b2, _b3]))
         self.command(_IL0373_VCM_DC_SETTING, bytearray([0x0A]))