as Tom suggested get rid of CFG_EXTRA_ENV_SETTINGS and
enable CONFIG_ENV_SOURCE_FILE and use text file
board/socrates/socrates.env
which contains the default environment. While at it,
cleanup the default Environment.
Signed-off-by: Heiko Schocher <hs@denx.de>
Suggested-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
