include/configs: Use new CONFIG_CMD_* in various A* named board config files.

include/configs: Use new CONFIG_CMD_* in various A* named board config files.

Since ADS860.h includes "board/fads/fads.h" with ramifications
on the CONFIG_COMMAND treatment, it too has to be adjusted to
exclude already configured commands in this same commit.

Signed-off-by: Jon Loeliger <jdl@freescale.com>