BUG/MEDIUM: mux-h2: pass CS_FL_ERR_PENDING to h2_wake_some_streams()

Commiy 8519357c ("BUG/MEDIUM: mux-h2: report asynchronous errors in
h2_wake_some_streams()") addressed an issue with synchronous errors
but forgot to fix the call places to also pass CS_FL_ERR_PENDING
instead of CS_FL_ERROR.

No backport is needed.
1 file changed