contrib: add servoinfo script

Print out information about servos that are connected to the
system.

BUG=None
TEST=None

Change-Id: I003569e3150843b6de4f583725c1ff99b7f3735d
Signed-off-by: Martin Roth <[email protected]>
Reviewed-on: https://chromium-review.googlesource.com/1509773
Commit-Ready: ChromeOS CL Exonerator Bot <[email protected]>
Reviewed-by: Raul E Rangel <[email protected]>
1 file changed