Merge branch 'master' of git://git.denx.de/u-boot-sunxi

Merge branch 'master' of git://git.denx.de/u-boot-net

Merge tag 'u-boot-imx-20181025' of git://git.denx.de/u-boot-imx

Merged imx8 architecture, fix build for imx8 + warnings

pinctrl: Add pinctrl driver for i.MX8

Add pinctrl driver for i.MX8. The pads configuration is controlled
by SCU, so need to ask SCU to configure pads through scfw API.
Add pinctrl-sc

pinctrl: Add pinctrl driver for i.MX8

Add pinctrl driver for i.MX8. The pads configuration is controlled
by SCU, so need to ask SCU to configure pads through scfw API.
Add pinctrl-scu to invoke sc_pad_set to configure pads.
Add a new flag IMX8_USE_SCU to differentiate i.MX8 from other platforms
which could directly configure pads from Acore side.
Add CONFIG_PINCTRL_IMX8 as the built gate.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

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