[U-Boot] [PATCH v2] configs: sama5d3xek: add default config for CMP board

[sjg at google.com]

The sama5d36ek CMP board is the variant of sama5d3xek board.
It is equipped with the low-power DDR2 SDRAM, PMIC ACT8865, and
some power rails. The board is mainly used to measure the power
consumption. As all those changes are done in at91bootstrap,
in U-Boot, only use another device tree file, no code needed
to change.

As there is additional power consumption when enbling the USB
Host and USB device, for the power consumption measurement
intention, disable the USB host and device.

Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
---
The patch is based on
        [PATCH v4 0/6] board: sama5d3: convert boards to support DM/DT
        https://lists.denx.de/pipermail/u-boot/2017-March/284732.html

Changes in v2:
 - Remove the SPL config options.
 - Convert MACB to support driver model.
 - Use CONFIG_DEBUG_UART_CLOCK as the input clock for the early debug UART.

 configs/sama5d36ek_cmp_mmc_defconfig       | 51 ++++++++++++++++++++++++++++++
 configs/sama5d36ek_cmp_nandflash_defconfig | 51 ++++++++++++++++++++++++++++++
 configs/sama5d36ek_cmp_spiflash_defconfig  | 51 ++++++++++++++++++++++++++++++
 3 files changed, 153 insertions(+)
 create mode 100644 configs/sama5d36ek_cmp_mmc_defconfig
 create mode 100644 configs/sama5d36ek_cmp_nandflash_defconfig
 create mode 100644 configs/sama5d36ek_cmp_spiflash_defconfig

Applied to u-boot-dm/next, thanks!