ppc: Remove kmcoge4 board

This board has not been converted to CONFIG_DM_PCI by the deadline and is
also missing conversion to CONFIG_DM.  Remove it.

Cc: Valentin Longchamp <valentin.longchamp@hitachi-powergrids.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
15 files changed