Merge tag 'arm-soc/for-4.18/defconfig' of https://github.com/Broadcom/stblinux into next/defconfig

This pull request contains Broadcom ARM-based SoCs defconfig changes for
4.18, please pull the following:

- Stefan provides a set of updates targeting the Raspberry Pi 3 B+
  platform: LAN7515 USB Ethernet driver, Cypress CYW43455 Bluetooth and
  he also enables the VCHIQ driver to help with continous testing on
  kernelci.org.

* tag 'arm-soc/for-4.18/defconfig' of https://github.com/Broadcom/stblinux

:
  ARM: multi_v7_defconfig: Enable LAN and BT for RPi 3 B+
  ARM: bcm2835_defconfig: Enable VCHIQ driver
  ARM: bcm2835_defconfig: Enable LAN78XX driver

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