Merge tag 'arm-soc/for-5.6/soc' of https://github.com/Broadcom/stblinux into arm/soc

This pull request contains Broadcom ARM-based SoCs Kconfig/machine
changes for 5.6, please pull the following:

- Justin adds an entry for BCM7216's debug UART to support DEBUG_LL
- Florian adds a select ARM_AMBA to support the ARM PL011 UART/console
  which is required on BCM7211

* tag 'arm-soc/for-5.6/soc' of https://github.com/Broadcom/stblinux:
  ARM: bcm: Select ARM_AMBA for ARCH_BRCMSTB
  ARM: brcmstb: Add debug UART entry for 7216

Link: https://lore.kernel.org/r/20200108191114.15987-3-f.fainelli@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>