Correction of the DSCP tag mapping, REF 14708
The tos setting was intended to config the whole byte which include both DSCP and ECN, hence the DSCP mark should not directly mapping to tos.
(MR for updating the correspond config: https://dev.iopsys.eu/rdk-factory/provider/oem/askey/meta-rdk-askey/-/merge_requests/79)
Edited by Wenpeng Song