Pull "Broadcom devicetree changes for 4.9" from Florian Fainelli:

This pull request contains Broadcom ARM-based Device Tree changes for v4.9,
please pull the following:

- Jon adds support for the Ethernet MAC DT nodes (AMAC) and provides the
  following updates for Broadcom references boards:
  * New Northstar Plus reference boards added: BCM958525er, BCM958522er,
    BCM988312hr, BCM958623hr and BCM958622hr
  * Add SATA nodes to the BCM958625hr and XMC boards
  * Add I2C nodes to the XMC board
  * Fixes the amount of RAM on BCM958625HR, BCM958625K and BCM958525XMC boards
  * Add the GPIO reboot method for BCM958625hr and XMC boards

- Dhanajay adds PWM nodes for the Northstar Plus SoCs

- Rafal adds the USB 2.0 PHY to the BCM5301x Device Tree file include

- Stefan adds a missing USB clock to the BCM283x DT files, adds a DTSI file for
  the USB host mode on BCM283x and finally documents and adds support for the
  Raspberry Pi Zero

- Florian adds support for the Northstar Plus Switch Register Access block which
  enables the integrated switch on these SoCs and enables the switch ports on the
  BCM958625HR reference board

* tag 'arm-soc/for-4.9/devicetree' of http://github.com/Broadcom/stblinux: (22 commits)
  ARM: dts: bcm2835: Add Raspberry Pi Zero
  DT: bindings: bcm: Add Raspberry Pi Zero
  ARM: dts: bcm283x: Add dtsi for USB host mode
  ARM: dts: bcm283x: Add missing USB clock
  ARM: dts: NSP: Add new DT file for bcm958622hr
  ARM: dts: NSP: Add new DT file for bcm958623hr
  ARM: dts: NSP: Add new DT file for bcm988312hr
  ARM: dts: NSP: Add new DT file for bcm958522er
  ARM: dts: NSP: Add new DT file for bcm958525er
  ARM: dts: NSP: Add GPIO reboot method to bcm958625xmc DTS file
  ARM: dts: NSP: Add GPIO reboot method to bcm958625hr DTS file
  ARM: dts: NSP: Specify RAM amount for BCM958525XMC board
  ARM: dts: NSP: Specify RAM amount for BCM958625K board
  ARM: dts: NSP: Enable SATA and add i2c devices on XMC
  ARM: dts: NSP: Enable SATA on bcm958625hr
  ARM: dts: NSP: Correct RAM amount for BCM958625HR board
  ARM: dts: NSP: Add PWM Support to DT
  ARM: BCM5301X: Specify PHY of USB 2.0 in DT
  ARM: dts: NSP: Add BCM958625HR switch ports
  ARM: dts: NSP: Add Switch Register Access Block node
  ...