[][OpenWrt Dev][Add crc32sum host utility]

[Description]
Add crc32sum host utility

[Release-log]
N/A

Change-Id: I8b616fafeeeda88f021aab9d6982073f29878b54
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5602768
diff --git a/tools/crc32sum/src/Makefile b/tools/crc32sum/src/Makefile
new file mode 100644
index 0000000..f66cc39
--- /dev/null
+++ b/tools/crc32sum/src/Makefile
@@ -0,0 +1,18 @@
+#
+# Copyright (C) 2021 MediaTek Inc. All rights reserved.
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+all: crc32sum
+
+crc32sum: crc32sum.c
+	$(CC) $(CFLAGS) -O2 -ggdb -MD -o $@ $< $(LDFLAGS)
+
+clean:
+	rm -f crc32sum crc32sum.d
+
+.PHONY: clean
+
+-include crc32sum.d
\ No newline at end of file