vboot: deprecate GPIO_SIGNAL_TYPE_DEV

As part of chromium:942901, physical dev switch functionality
is being deprecated.

BUG=chromiumos:942901
TEST=make clean && make runtests
BRANCH=none

Change-Id: I84d35a3eade6272896e7f9c3c43e87bba090f132
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1539435
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Joel Kitching <kitching@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
1 file changed