MFC r342008, r342010-r342020

MFC r342008, r342010-r342020

r342008:
fdt: Add support for simple-mfd bus

Quoting the binding Documentation :

"These devices comprise a nexus for heterogeneous hardware blocks containing
more than one non-unique yet varying hardware functionality."

Reviewed by:	loos
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D17751

r342010:
arm64: Add new SoC type MARVELL_8K

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342011:
arm64: mvebu_pinctrl: Add driver for Marvell Pinmux Controller

Add a driver compatible with Marvell mvebu-pinctrl and add ap806-pinctrl
support.

Sponsored by:	Rubicon Communications, LCC ("Netgate")

r342012:
arm64: marvell: Add driver for Marvell Ap806 System Controller

The first two clocks are for the clusters and their frequencies can be
found reading a register. Then a fixed 1200Mhz clock is present and two
fixed clocks, 'mss' which is 1200 / 6 and 'sdio' which is 1200 / 3.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342013:
arm64: mv_gpio: Add Marvell 8K support

While here put the interrupts setup in it's own function

Sponsored by:	Rubicon Communications, LCC ("Netgate")

r342014:
arm64: marvell: Add cp110 clock controller support

The cp110 clock controller controls the clocks and gate of the CP110
hardware block.

Every clock/gate are implemented except the NAND clock.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342015:
twsi: Clean up marvell part and add support for Marvell 7k/8k

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342016:
arm64: Add mv_cp110_icu and mv_cp110_gicp

icu is a interrupt concentrator in the CP110 block and gicp
is a gic extension to allow interrupts in the CP block to be turned
into GIC SPI interrupts

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342017:
sdhci_xenon: Add Marvell 8k compatible string

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342018:
mv_gpio: Since it's also an interrupt controller, attach sooner

Sponsored by:	Rubicon Communications, LLC ("Netgate")

r342019:
arm64: mv_cp110_icu: Fix build

r342020:
mv_thermal: Add thermal driver for AP806 and CP110 thermal sensor

Sponsored by:	Rubicon Communications, LLC ("Netgate")