Add missing CHANGELOG entry

CHANGELOG

@@ -2,6 +2,13 @@
 Changes for U-Boot 1.1.3:
 ======================================================================
 
+* Implement h/w sector protection status synchronization at boot.
+  The code is provided for, and was tested on, the Yukon/Alaska
+  and PM520 boards only.
+
+  A bug in flash_real_protect() for the Yukon board was fixed by
+  adding a function that tells if two banks are on one flash chip.
+
 * Fix sysmon POST problem: check I2C error codes
   This fixes a problem of displaying bogus voltages when the voltages
   are so low that the I2C devices start failing while the rest of the