[clang] [llvm] [RISCV] Add processor definition and scheduling information for GR765 (PR #225638)

[Min-Yih Hsu via llvm-commits]

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@@ -256,6 +256,7 @@ Makes programs 10x faster by doing Special New Thing.
 * Added experimental MC support for the ACLIC v0.20 extensions: `Smidctrl`,
   `Ssidctrl`, `Smnip`, `Ssnip`, `Smijt`, `Ssijt`, `Smehv`, `Ssehv`, `Smcsps`,
   `Sscsps`, `Smip`, and `Ssip`.
+* Added `-mcpu=gr765` for the 64-bit GR765 processor.
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mshockwave wrote:

could you append this line to the end?

https://github.com/llvm/llvm-project/pull/225638