Merge tag 'arm-soc/for-4.16/drivers' of http://github.com/Broadcom/stblinux into...

Merge tag 'arm-soc/for-4.16/drivers' of github.com/Broadcom/stblinux into next/drivers

This pull request contains Broadcom ARM/ARM64 based SoCs drivers changes for
4.16, please pull the following:

- Arnd provides an update to the Raspberry Pi firmware interface and uses time64_t to
  print the time to make it more future proof

- Florian provides a set of updates to make the Broadcom STB Bus Interface Unit code
  work on newer ARM64-based chips, as well as perform the correct interface tuning
  for these chips to reach the expected performance

* tag 'arm-soc/for-4.16/drivers' of http://github.com/Broadcom/stblinux:
  soc: brcmstb: biuctrl: Move to early_initcall
  soc: brcmstb: Split initialization
  soc: brcmstb: biuctrl: Fine tune B53 MCP interface settings
  soc: brcmstb: biuctrl: Wire-up new registers
  soc: brcmstb: biuctrl: Prepare for saving/restoring other registers
  soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs
  soc: brcmstb: Make CPU credit offset more parameterized
  dt-bindings: arm: brcmstb: Correct BIUCTRL node documentation
  dt-bindings: arm: Add entry for Broadcom Brahma-B53
  firmware: raspberrypi: print time using time64_t

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