servo: Deprecate unprogrammed servo V1 boards.

servo V1 boards haven't been used for quite some time and of the 50
ever produced they really should have been programmed properly.

Motivation for performing this deprecation is actually that someone
recently found an unprogrammed servo V2 which also matches vid:0403
pid:6011 and incorrectly enumerates as a servo V1 (actually two of
them).  Chaos ensues from there.  By deprecating this default vid/pid
that too will be fixed (fail hard).

BUG=none
TEST=manual,
# connect one servo V2 that hasn't had EEPROM programmed
sudo servod -b foo
log message says 'no servos found'

# connect servo V2 that is properly programmed
sudo servod -b foo
WAI

Change-Id: I61fb6b3198297d249903308e7c6cc30eb87c5a0f
Reviewed-on: https://chromium-review.googlesource.com/764384
Commit-Ready: Todd Broch <tbroch@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
1 file changed