ARM: SoC platform updates

SoC updates, mostly refactorings and cleanups of old legacy platforms.
Major themes this release:

 - Conversion of ixp4xx to a modern platform (drivers, DT, bindings)
 - Moving some of the ep93xx headers around to get it closer to multiplatform enabled.
 - Cleanups of Davinci

This tag also contains a few patches that were queued up as fixes before
5.1 but I didn't get sent in before release.
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Merge branch 'fixes' into arm/soc

Merge in a few pending fixes from pre-5.1 that didn't get sent in:

MAINTAINERS: update arch/arm/mach-davinci
ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1
ARM: dts: imx6q-logicpd: Reduce inrush current on start
ARM: dts: imx: Fix the AR803X phy-mode
ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing
arm64: dts: allwinner: a64: Rename hpvcc-supply to cpvdd-supply
ARM: sunxi: fix a leaked reference by adding missing of_node_put
ARM: sunxi: fix a leaked reference by adding missing of_node_put

Signed-off-by: Olof Johansson <olof@lixom.net>