Add documentation to all connector types

Mention to use TESLA_SUPERCHARGER instead of TESLA_HPWC because they are
the same standard. Mention that TESLA_SUPERCHARGER refers to the new
NACS standard.

Bug: 328106085
Test: m
Change-Id: I8821f8a26b5971fcc7597b56c5e239a093e5795a
1 file changed