* Get (mostly) rid of CFG_MONITOR_LEN definition; compute real length
  instead CFG_MONITOR_LEN is now only used to determine  _at_compile_
  _time_  (!) if the environment is embedded within the U-Boot image,
  or in a separate flash sector.

* Cleanup CFG_DER #defines in config files (wd maintained only)
diff --git a/board/esd/ocrtc/flash.c b/board/esd/ocrtc/flash.c
index 90965ea..c3d8bec 100644
--- a/board/esd/ocrtc/flash.c
+++ b/board/esd/ocrtc/flash.c
@@ -127,7 +127,7 @@
 
 	/* monitor protection ON by default */
 	flash_protect (FLAG_PROTECT_SET,
-			base_b0 + size_b0 - CFG_MONITOR_LEN,
+			base_b0 + size_b0 - monitor_flash_len,
 			base_b0 + size_b0 - 1, &flash_info[0]);
 
 	if (size_b1) {
@@ -138,11 +138,11 @@
 
 		/* monitor protection ON by default */
 		flash_protect (FLAG_PROTECT_SET,
-				base_b1 + size_b1 - CFG_MONITOR_LEN,
+				base_b1 + size_b1 - monitor_flash_len,
 				base_b1 + size_b1 - 1, &flash_info[1]);
 		/* monitor protection OFF by default (one is enough) */
 		flash_protect (FLAG_PROTECT_CLEAR,
-				base_b0 + size_b0 - CFG_MONITOR_LEN,
+				base_b0 + size_b0 - monitor_flash_len,
 				base_b0 + size_b0 - 1, &flash_info[0]);
 	} else {
 		flash_info[1].flash_id = FLASH_UNKNOWN;