powerpc/b4860qds: Update README for DIP switch information

The board manual desribes ON as boolean 1 and OFF as boolean 0.
Updating README with correct boolean values.
Signed-off-by: NRaghav Dogra <raghav@freescale.com>
Reviewed-by: NYork Sun <yorksun@freescale.com>

doc/README.b4860qds

@@ -119,7 +119,7 @@ B4860QDS Default Settings
 Switch Settings
 ----------------
 
-SW1	OFF [0]	OFF [1]	OFF [1]	OFF [0]	OFF [1]	OFF [0]	OFF [1]	OFF [1]
+SW1	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]	OFF [0]
 SW2	ON	ON	ON	ON	ON	ON	OFF	OFF
 SW3	OFF	OFF	OFF	ON	OFF	OFF	ON	OFF
 SW5	OFF	OFF	OFF	OFF	OFF	OFF	ON	ON