powerpc: ppc4xx: Use CONFIG_OF_CONTROL for canyonlands boards

Enable CONFIG_OF_CONTROL so that U-Boot on these three boards uses a device
tree for its configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>

board/amcc/canyonlands/u-boot-ram.lds

@@ -12,6 +12,7 @@ SECTIONS
   . = + SIZEOF_HEADERS;
   .text      :
   {
+    _image_copy_start = .;
     arch/powerpc/cpu/ppc4xx/start.o	(.text*)
     board/amcc/canyonlands/init.o	(.text*)
 
@@ -61,9 +62,14 @@ SECTIONS
   . = ALIGN(256);
   __init_begin = .;
   .text.init : { *(.text.init) }
-  .data.init : { *(.data.init) }
-  . = ALIGN(256);
+  .data.init : {
+	*(.data.init)
+	. = ALIGN(256);
+	LONG(0) LONG(0)		/* Extend u-boot.bin to here */
+  }
   __init_end = .;
+  _end = .;
+  _image_binary_end = .;
 
   __bss_start = .;
   .bss (NOLOAD)       :

configs/arches_defconfig

@@ -2,3 +2,6 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_CANYONLANDS=y
 CONFIG_ARCHES=y
+CONFIG_DEFAULT_DEVICE_TREE="arches"
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y

configs/canyonlands_defconfig

@@ -2,3 +2,6 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_CANYONLANDS=y
 CONFIG_CANYONLANDS=y
+CONFIG_DEFAULT_DEVICE_TREE="canyonlands"
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y

configs/glacier_defconfig

@@ -2,3 +2,6 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_CANYONLANDS=y
 CONFIG_GLACIER=y
+CONFIG_DEFAULT_DEVICE_TREE="glacier"
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y

configs/glacier_ramboot_defconfig

@@ -3,3 +3,6 @@ CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_CANYONLANDS=y
 CONFIG_GLACIER=y
+CONFIG_DEFAULT_DEVICE_TREE="glacier"
+CONFIG_OF_CONTROL=y
+CONFIG_OF_SEPARATE=y