scripts/dtc: add fdt_overlay.c and fdt_addresses.c to sync script

libfdt has gained some new files. We need to include them in the
kernel's copy.
Reported-by: Kyle Yan <kyan@codeaurora.org>
Signed-off-by: Rob Herring <robh@kernel.org>

scripts/dtc/update-dtc-source.sh

@@ -34,7 +34,9 @@ DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c
 		srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \
 		dtc-lexer.l dtc-parser.y"
 DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h"
-LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_empty_tree.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h"
+LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_addresses.c fdt_empty_tree.c \
+		fdt_overlay.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c \
+		fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h"
 
 get_last_dtc_version() {
 	git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/'