fix(cbo): bump ready-to-run to support CBO extension and fix xenvcfg

OpenXiangShan / NEMU

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fix(cbo): bump ready-to-run to support CBO extension and fix xenvcfg #528

Closed sinceforYy closed 1 month ago

sinceforYy commented 1 month ago

This PR initializes the xenvcfg.cbo bits and fix xenvcfg wmask. Add senvcfg csr read/write. MeanWhile, when xenvcfg.CBIE = 2 is reserved and cannot be written.

Bump ready-to-run to support CBO extension.