rgb matrix now can work out what side its on using the drive name

kmk/extensions/peg_rgb_matrix.py

@@ -3,6 +3,7 @@ import neopixel
 from kmk.extensions import Extension
 from kmk.handlers.stock import passthrough as handler_passthrough
 from kmk.keys import make_key
+from storage import getmount
 
 
 class Color:
@@ -46,10 +47,15 @@ class Rgb_matrix(Extension):
         split=False,
         rightSide=False,
     ):
+        name = str(getmount('/').label)
         self.rgb_order = rgb_order
         self.disable_auto_write = disable_auto_write
         self.split = split
         self.rightSide = rightSide
+        if name.endswith('L'):
+                self.rightSide = False
+        elif name.endswith('R'):
+                self.rightSide = True
         if type(ledDisplay) is Rgb_matrix_data:
             self.ledDisplay = ledDisplay.data
         else: