servo: Add INA config for Ampton

Ampton has a different topology for rails going to INAs than Bip. Get
this up to date for power measurements.

TEST=Manually confirmed that the INAs match the corresponding schematic
revision and the python file has no syntantical errors.

Change-Id: Ie73b550c1e58a65b6a8c4e83cb5c55d3fbc5d1ec
Commit-Ready: Jett Rink <>
Tested-by: Jett Rink <>
Reviewed-by: Jett Rink <>
1 file changed