UPSTREAM: binder: filter out nodes when showing binder procs

When dumping out binder transactions via a debug node,
the output is too verbose if a process has many nodes.
Change the output for transaction dumps to only display
nodes with pending async transactions.

Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ecd589d8f5661dd3a9545079a29b678cd9e3ecf3)
Bug: 112037142
Change-Id: Iaa76ebdc844037ce1ee3bf2e590676790a959cef