[llvm] [llvm][Docs] Release note for LLDB optionally disabled regsets for RV64 (PR #123363)

[David Spickett via llvm-commits]

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@@ -483,6 +483,8 @@ Changes to LLDB
   to be opened in the firewall (one for the `lldb-server` platform, one for gdbserver connections).
   In addition, due to this work, `lldb-server` now works on Windows in the server mode.
 
+* LLDB now supports optionally enabled/disabled register sets (particularly FPR) for RISC-V 64. The situation might take place for RISC-V builds having no FP-registers, like RV64IMAC or RV64IMACV. The change is applied to native debugging or core-file usage. EmulateInstruction is out of scope of the change, so its behavior remains the same using the maximum set of registers.
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DavidSpickett wrote:

It didn't occur to me that we'd be looking for vector registers in their place.

Yeah, do silly things, get silly results :)

https://github.com/llvm/llvm-project/pull/123363