Merge tag 'arm-soc/for-5.4/defconfig' of https://github.com/Broadcom/stblinux into arm/defconfig

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

- Nicolas enables the Raspberry Pi CPUFREQ driver in both
  bcm2835_defconfig and multi_v7_defconfig

* tag 'arm-soc/for-5.4/defconfig' of https://github.com/Broadcom/stblinux:
  ARM: defconfig: enable cpufreq driver for RPi