tegra: always build u-boot-nodtb-tegra.bin

Even when eventually building u-boot-dtb-tegra.bin, separately building
u-boot-nodtb-tegra.bin can be useful, since building it encapsulates the
SPL padding step. If you want to tweak u-boot.dtb and regenerate
u-boot-dtb-tegra.bin, it is then a simple cat operation.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

Makefile

@@ -543,18 +543,15 @@ $(obj)u-boot.spr:	$(obj)u-boot.img $(obj)spl/u-boot-spl.bin
 		cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
 
 ifneq ($(CONFIG_TEGRA),)
-ifeq ($(CONFIG_OF_SEPARATE),y)
-nodtb=dtb
-dtbfile=$(obj)u-boot.dtb
-else
-nodtb=nodtb
-dtbfile=
-endif
-
-$(obj)u-boot-$(nodtb)-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin $(dtbfile)
+$(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin
-		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin $(dtbfile) > $@
+		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
 		rm $(obj)spl/u-boot-spl-pad.bin
+
+ifeq ($(CONFIG_OF_SEPARATE),y)
+$(obj)u-boot-dtb-tegra.bin: $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb
+		cat $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb > $@
+endif
 endif
 
 $(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img