[][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/prepare_sdk.sh b/prepare_sdk.sh
index ae48710..7a3dd67 100755
--- a/prepare_sdk.sh
+++ b/prepare_sdk.sh
@@ -33,6 +33,7 @@
 #cp mtk target to OpenWRT
 cp -fpR ${MTK_FEEDS_DIR}/target ./
 cp -fpR ${MTK_FEEDS_DIR}/package ./
+cp -fpR ${MTK_FEEDS_DIR}/tools ./
 #remove patch if choose to not "keep" patch
 if [ -z ${2} ]; then
 	remove_patches