Add release note for WoA HW Watch support

Author: omjavaid

llvm/docs/ReleaseNotes.md

@@ -575,6 +575,10 @@ Changes to LLDB
      24   int main() {
   Likely cause: f->b->d accessed 0x4
   ```
+* LLDB now supports hardware watchpoints for AArch64 Windows targets. Windows
+  does not provide API to query the number of supported hardware watchpoints.
+  Therefore current implementation allows only 1 watchpoint, as tested with
+  Windows 11 on the Microsoft SQ2 and Snapdragon Elite X platforms.
 
 Changes to BOLT
 ---------------------------------