docs/devicetree/i2c: brcm,bcm2835: fix node id in example

This is a trivial patch to fix node id to match the reg in example.
Signed-off-by: Kangmin Park <l4stpr0gr4m@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt

@@ -13,7 +13,7 @@ Recommended properties:
 
 Example:
 
-i2c@20205000 {
+i2c@7e205000 {
 	compatible = "brcm,bcm2835-i2c";
 	reg = <0x7e205000 0x1000>;
 	interrupts = <2 21>;