powerpc/85xx: Add basic support for P1010RDB

Boot methods supported: NOR Flash, SPI Flash and SDCARD
This patch adds the following basic interfaces:
DDR3, eTSEC, DUART, I2C, SD/MMC, USB, SATA, PCIe, NOR Flash, SPI Flash.

P1010RDB Overview
-----------------
1Gbyte DDR3 (on board DDR)
Local Bus (IFC):
	32Mbyte 16bit NOR flash
	32Mbyte SLC NAND Flash
	64KB CPLD device(GPCM interface)
SPI Flash:
	128 Mbit SPI Flash memory
SD/MMC:
	connector to interface with the SD memory card
SATA:
	1 internal SATA connect to 2.5. 160G SATA2 HDD
	1 eSATA connector to rear panel
USB 2.0:
	x1 USB 2.0 port: connected via a UTMI PHY to Mini-AB interface.
	x1 USB 2.0 port: directly connected to Mini-AB interface Ethernet
eTSEC:
	eTSEC1: Connected to RGMII PHY VSC8641XKO
	eTSEC2: Connected to SGMII PHY VSC8221
	eTSEC3: Connected to SGMII PHY VSC8221
eCAN:
	Two DB-9 female connectors for Field bus interface
UART:
	supports two UARTs up to 115200 bps for console
TDM:
	2 FXS ports connected via an external SLIC to the TDM interface.
SLIC:
	SPI SLIC
I2C:
	Serial EEprom
	Real time clock
	256 Kbit M24256 I2C EEPROM
PCIe:
	PCIe and mPCIe connectors.

Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Dipen Dudhat <dipen.dudhat@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>