Revert "zeus: Remove all code regarding RPC USB."

This reverts commit 649ce70550526f094023cfe23e4ca4c2e54bc45a.
zeus: bring back older board charging code
rpc_hsusb: bring back older SEMC charger code
defconfig: zeus: Disable SEMC charger arch

We will use the older code from 4.1.B.1.13