pd: Remove verbosity from console during pd flashing.
pd: Remove verbosity from console during pd flashing.

Commit 74fd6f9 largely got rid of default printing of VDM traffic to console but
one in custom_vdm was missed.  Lets remove it too.  Note can still view these by
'pd dump 1'

Signed-off-by: Todd Broch <tbroch@chromium.org>

BRANCH=samus
BUG=none
TEST=manual when pd flashing samus_pd console (chan usbpd) is quiet.

Reviewed-on: https://chromium-review.googlesource.com/241952
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Todd Broch <tbroch@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
(cherry picked from commit d7f40b91ad2d8bf67e28b8942befdd2a1eadeb3a)
Signed-off-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

Change-Id: Idc04750de09572df8d5b15afcdde63f6afc4b5e2
Reviewed-on: https://chromium-review.googlesource.com/242133
Tested-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Commit-Queue: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec