Fix ADC1173 VIN pin

[evanshultz]

Also change pin name offset to 20mil and shorten pin length to 100mil (while keeping same pin locations).

Datasheet:http://www.ti.com/lit/ds/symlink/adc1173.pdf.

Since this is a bug and should be quick to review, while not breaking anything, I'd like to get it into 5.0.2.

See #1165.

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[antoniovazquezblanco]

Closing and reopening the issue for CLA fixing.

[antoniovazquezblanco]

Just a note on GH features. If you use the keywords "Fixes #issuenumber" in your PR description, GitHub will automatically close the referenced issue once the PR is merged.