ppc4xx: Fix NAND booting targets after 4xx linker script consolidation

Somehow I missed the NAND booting targets in the 4xx linker script
consolidation patchset. This patch fixes this issue.

Signed-off-by: Stefan Roese <sr@denx.de>

board/amcc/acadia/config.mk

@@ -34,3 +34,7 @@ endif
 ifeq ($(debug),1)
 PLATFORM_CPPFLAGS += -DDEBUG
 endif
+
+ifdef CONFIG_NAND_U_BOOT
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+endif

board/amcc/bamboo/config.mk

@@ -36,3 +36,7 @@ endif
 ifeq ($(dbcr),1)
 PLATFORM_CPPFLAGS += -DCONFIG_SYS_INIT_DBCR=0x8cff0000
 endif
+
+ifdef CONFIG_NAND_U_BOOT
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+endif

board/amcc/canyonlands/config.mk

@@ -39,3 +39,7 @@ endif
 ifeq ($(dbcr),1)
 PLATFORM_CPPFLAGS += -DCONFIG_SYS_INIT_DBCR=0x8cff0000
 endif
+
+ifdef CONFIG_NAND_U_BOOT
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+endif

board/amcc/kilauea/config.mk

@@ -30,3 +30,7 @@ endif
 ifeq ($(debug),1)
 PLATFORM_CPPFLAGS += -DDEBUG
 endif
+
+ifdef CONFIG_NAND_U_BOOT
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+endif

board/amcc/sequoia/config.mk

@@ -43,3 +43,7 @@ endif
 ifeq ($(dbcr),1)
 PLATFORM_CPPFLAGS += -DCONFIG_SYS_INIT_DBCR=0x8cff0000
 endif
+
+ifdef CONFIG_NAND_U_BOOT
+LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
+endif