Add PowerPC 750 Holly/Hickory platform support
Signed-off-by: NStephen Winiecki <stevewin@us.ibm.com>
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NPaul Mackerras <paulus@samba.org>