fdt: remove unused OF_FLAT_TREE_MAX_SIZE references

and make some minor corrections to the FDT part of the README.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/README b/README
index 4b1982b..09eb76f 100644
--- a/README
+++ b/README
@@ -338,7 +338,7 @@
 		CONFIG_OF_LIBFDT
 		 * New libfdt-based support
 		 * Adds the "fdt" command
-		 * The bootm command does _not_ modify the fdt
+		 * The bootm command automatically updates the fdt
 
 		CONFIG_OF_FLAT_TREE
 		 * Deprecated, see CONFIG_OF_LIBFDT
@@ -347,15 +347,13 @@
 		 * The environment variable "disable_of", when set,
 		     disables this functionality.
 
-		CONFIG_OF_FLAT_TREE_MAX_SIZE
-
-		The maximum size of the constructed OF tree.
-
 		OF_CPU - The proper name of the cpus node.
 		OF_SOC - The proper name of the soc node.
 		OF_TBCLK - The timebase frequency.
 		OF_STDOUT_PATH - The path to the console device
 
+		boards with QUICC Engines require OF_QE to set UCC mac addresses
+
 		CONFIG_OF_HAS_BD_T
 
 		 * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
@@ -365,7 +363,7 @@
 
 		CONFIG_OF_HAS_UBOOT_ENV
 
-		 * CONFIG_OF_LIBFDT - enables the "fdt bd_t" command
+		 * CONFIG_OF_LIBFDT - enables the "fdt env" command
 		 * CONFIG_OF_FLAT_TREE - The resulting flat device tree
 		     will have a copy of u-boot's environment variables