update changelog entry

Author: mowies

.chloggen/rv64.yaml

@@ -11,7 +11,7 @@ note: New platform support - riscv64
 
 
 # One or more tracking issues or pull requests related to the change
-issues: []
+issues: [968, 969]
 
 # (Optional) One or more lines of additional information to render under the primary note.
 # These lines will be padded with 2 spaces and then inserted directly into the document.