host: adding gpio print for debugging
host: adding gpio print for debugging

Add console print when GPIO line changes for easier unit
test debugging

BRANCH=none
BUG=none
TEST=verified that gpio print occurs in unit tests

Change-Id: I888859c8ef4a1b879146e9c01767ee487f7ce564
Signed-off-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1896124
Commit-Queue: Raul E Rangel <9a9c998e11a2655b1de9a05eeeef5f710c0dc7ed@chromium.org>
Reviewed-by: Raul E Rangel <9a9c998e11a2655b1de9a05eeeef5f710c0dc7ed@chromium.org>

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