poppy: Do not print base detection value if base stays connected
poppy: Do not print base detection value if base stays connected

Reduces amount of spam during EC-EC communication.

BRANCH=none
BUG=b:65697962
TEST=Flash lux and wand, less spam on console

Change-Id: Ie66a3d0f4711741bf3d605f13e7595373c5246f5
Signed-off-by: Nicolas Boichat <f3daba1cdc403799935674d3cd4b0e5bd1804232@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/725124
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec