imx: Extend PCL063 support for phyCORE-i.MX6ULL SOM

imx: Extend PCL063 support for phyCORE-i.MX6ULL SOM

Extend PHYTEC phyBOARD-i.MX6UL for phyCORE-i.MX6UL SoM (PCL063)
with eMMC on SoM.

CPU:   Freescale i.MX6ULL rev1.0 792 MHz (running at 396 MHz)
CPU:   Industrial temperature grade (-40C to 105C) at 38C
Reset cause: POR
Model: Phytec phyBOARD-i.MX6ULL-Segin SBC
Board: PHYTEC phyCORE-i.MX6ULL
DRAM:  256 MiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
In:    serial@02020000
Out:   serial@02020000
Err:   serial@02020000
Net:   FEC0

Working:
 - Eth0
 - i2C
 - MMC/SD
 - eMMC
 - UART (1 & 5)
 - USB (host & otg)

Signed-off-by: Parthiban Nallathambi <parthitce@gmail.com>