[rdkb][common][bsp][Refactor and sync kernel from openwrt]

[Description]
a12f13c9 [MAC80211][wed][fix fw download fail issue when wed on/off]
a6f5795f [kernel][common][add dhrystone default setting to kernel config]
3aff7191 [kernel][mt7988][backport dhrystone from kernel 6.4]
2f4d3117 [Kernel][hnat][Fix Veth TX packets issue]
609729f6 [kernel][common][hnat][Refine HNAT prefilled flow for the WiFi Tx]

[Release-log]

Change-Id: I1d142b96a7cff2e80767aa6556f058a86ffc2907
9 files changed