sunxi: Makefile: Drop explicit targets built by binman

On sunxi various files that need to be created by binman. It does not make
sense to enumerate these in the Makefile. They are described in the
configuration (devicetree) for each board and we can simply run binman
(always) to generate them.

This avoid sprinkling the Makefile with arch-specific code.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/Makefile b/Makefile
index 4274715..c13321f 100644
--- a/Makefile
+++ b/Makefile
@@ -922,7 +922,7 @@
 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 
 # Build a combined spl + u-boot image for sunxi
-ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
+ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_ARM64)$(CONFIG_SPL),yyy)
 INPUTS-y += u-boot-sunxi-with-spl.bin
 endif
 
@@ -1606,10 +1606,7 @@
 endif # CONFIG_X86
 
 ifneq ($(CONFIG_ARCH_SUNXI),)
-ifeq ($(CONFIG_ARM64),)
-u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
-	$(call if_changed,binman)
-else
+ifeq ($(CONFIG_ARM64),y)
 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
 	$(call if_changed,cat)
 endif