T108:添加sdk ready 检查机制

Change-Id: Ic03fb706cc42cb8ca1e022817302be48a30c96ef
diff --git a/build.sh b/build.sh
index 17bdf20..8375db0 100755
--- a/build.sh
+++ b/build.sh
@@ -111,6 +111,7 @@
 		[ -f out/bin/ota_update ] && cp -f out/bin/ota_update $ROOTFS_DIR
 		[ -f out/bin/device_info ] && cp -f out/bin/device_info $ROOTFS_DIR/bin
 		[ -f out/bin/mtd_info ] && cp -f out/bin/mtd_info $ROOTFS_DIR/bin
+		[ -f out/bin/mbtk_sdk_ready ] && cp -f out/bin/mbtk_sdk_ready $ROOTFS_DIR/bin
 	else
 		echo "No found rootfs : $ROOTFS_DIR"
 	fi