Add RZ/G3E xSPI support

Merge series from Biju Das <biju.das.jz@bp.renesas.com>:

The xSPI IP found on RZ/G3E SoC similar to RPC-IF interface, but it
can support writes on memory-mapped area. Even though the registers are
different, the rpcif driver code can be reused for xSPI by adding wrapper
functions.
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Mark Brown 2025-05-09 18:06:17 +09:00
commit 09fd04daed
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6 changed files with 929 additions and 192 deletions