boards: Disable CMD_SATA on platforms that no longer have a SATA driver enabled

There are a number of platforms that depend on a SATA driver that has
been converted to require AHCI but the platforms themselves are behind
on other migrations that would make it trivial to enable AHCI.  Disable
SATA in these cases.

Signed-off-by: Tom Rini <trini@konsulko.com>