cosmetic: delete misleading comment /* CONFIG_BOARDDIR */

CONFIG_BOARDDIR is not referenced in these linker scripts.
The comment /* CONFIG_BOARDDIR */ is misleading.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

arch/powerpc/cpu/mpc85xx/u-boot-nand.lds

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "config.h"	/* CONFIG_BOARDDIR */
+#include "config.h"
 
 #ifndef CONFIG_SYS_MONITOR_LEN
 #define CONFIG_SYS_MONITOR_LEN	0x80000

arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds

@@ -7,7 +7,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "config.h"	/* CONFIG_BOARDDIR */
+#include "config.h"
 
 OUTPUT_ARCH(powerpc)
 SECTIONS

arch/powerpc/cpu/mpc85xx/u-boot-spl.lds

@@ -7,7 +7,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "config.h"	/* CONFIG_BOARDDIR */
+#include "config.h"
 
 OUTPUT_ARCH(powerpc)
 #ifdef CONFIG_SYS_MPC85XX_NO_RESETVEC

arch/powerpc/cpu/mpc85xx/u-boot.lds

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "config.h"	/* CONFIG_BOARDDIR */
+#include "config.h"
 
 #ifdef CONFIG_RESET_VECTOR_ADDRESS
 #define RESET_VECTOR_ADDRESS	CONFIG_RESET_VECTOR_ADDRESS

board/dave/PPChameleonEVB/u-boot.lds

@@ -4,7 +4,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "config.h"	/* CONFIG_BOARDDIR */
+#include "config.h"
 
 #ifndef RESET_VECTOR_ADDRESS
 #define RESET_VECTOR_ADDRESS	0xfffffffc