Merge branch '2021-08-30-kconfig-migrations-part1' into next
- Begin merging some Kconfig migration, and CONFIG namespace cleanup
series in. This gives us:
- A number of I2C symbols migrated over
- DWC2, i8042, altera_spi and a few other areas updated to use CFG not
CONFIG for the concept of "configuration space" defines.
- Rename CONFIG_EXTRA_ENV_BOARD_SETTINGS to EXTRA_ENV_BOARD_SETTINGS
- Some dead code removal.
- Rename a number of CONFIG symbols that were only referenced within
the config header to not use CONFIG as a prefix.