charge_manager: Fix port selection debug print
charge_manager: Fix port selection debug print

Port + supplier parameters were swapped.

BUG=None
TEST=Manual on Samus. Insert charger into first port, verify "p0" is
printed.
BRANCH=Samus

Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/237301
Reviewed-by: Alec Berg <alecaberg@chromium.org>
(cherry picked from commit dc1a89a70aa27d90f0538a87f1cf20b284563397)
Signed-off-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

Change-Id: Ibb86f07bdd321a91c199310c67054025fa609c43
Reviewed-on: https://chromium-review.googlesource.com/237669
Tested-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Commit-Queue: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Trybot-Ready: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

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