[PATCH] scripts/Makefile.spl: Use 'sort' in SHRUNK_ARCH_DTB rule

[Tom Rini]

With configs such as "am64x_evm_a53" or "imx8mp_venice" which list
multiple device trees to build we get a warning such as:
scripts/Makefile.spl:578: target 'spl/dts/freescale/' given more than once in the same rule

If we sort this list first the warning goes away.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
 scripts/Makefile.spl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
index d074ba235006..60db38d5bddd 100644
--- a/scripts/Makefile.spl
+++ b/scripts/Makefile.spl
@@ -575,7 +575,7 @@ endif
 
 SPL_OF_LIST_TARGETS = $(patsubst %,dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST)))
 SHRUNK_ARCH_DTB = $(addprefix $(obj)/,$(SPL_OF_LIST_TARGETS))
-$(dir $(SHRUNK_ARCH_DTB)):
+$(sort $(dir $(SHRUNK_ARCH_DTB))):
 	$(shell [ -d $@ ] || mkdir -p $@)
 
 .SECONDEXPANSION:
-- 
2.34.1