[clang] [llvm] [RISCV] Add smcntrpmf extension (PR #136556)

[Craig Topper via llvm-commits]

================
@@ -480,3 +480,51 @@ csrrs t2, 0xC1E, zero
 csrrs t1, hpmcounter31, zero
 # uimm12
 csrrs t2, 0xC1F, zero
+
+# mcyclecfg
----------------
topperc wrote:

This is user-csr-names.s, but these are M-mode CSRs so they should be in machine-csr-names.s 

https://github.com/llvm/llvm-project/pull/136556