- Garbage-collect the obsolete GTTWSI_ALLWINNER option; it hasn't been
needed since FDT'ization of the Allwinner support code.
- Redefine thw "TWSI_*" register definitions to clearly call out:
-> The Marvell flavor of the offsets
-> The Allwinner flavor of the offsets
...and make the regular definitions indices into a register map.
- Pass the appropriate register map from the front-end to the core.
- Remove the customer register read/write callbacks -- they are no longer
needed now that each front-end passes an appropriate register map to
the core.
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