busybox: disable defconfig options from getopts.cfg and move long opts

busybox: disable defconfig options from getopts.cfg and move long opts

This disables getopts.cfg fragment options in the defconfig which were
accidentally enabled in 4335cd24 ("busybox: refresh the defconfig from
1.33.0").

Since there is longopts.cfg for long options, move
CONFIG_FEATURE_GETOPT_LONG there. It was probably not placed there
originally since it does not match the naming scheme of the other long
options.

Note that CONFIG_LONG_OPTS will just be dropped since it is enabled in
defconfig anyway.

Signed-off-by: Enrico Jörns <ejo@pengutronix.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>