arm64: defconfig: Enable devfreq support for i.MX8MQ

This is needed to make DRAM frequency scaling via defreq as used
on the Librem 5 and Librem 5 Devkit.

With the interconnect support enabled we now need imx devfreq on top
to make this work.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
2 jobs for forward-upstream/next-20210112/dt-and-defconfig in 113 minutes and 49 seconds
latest
Status Job ID Name Coverage
  Build
passed #319623
librem5
build:aarch64:defconfig

00:43:46

 
  Package
failed #319624
librem5
pkg:aarch64:defconfig

01:10:03

 
Name Stage Failure
failed
pkg:aarch64:defconfig Package
dpkg-buildpackage: info: binary-only upload (no source included)
$ rm -f ../* || true
rm: cannot remove '../linux-imx8': Is a directory
rm: cannot remove '../linux-imx8.tmp': Is a directory
$ rm -rf "${WORKING_DIR}"; mkdir -p "${WORKING_DIR}"
$ cp -l ../*.deb ../*.changes "${WORKING_DIR}/"
cp: cannot stat '../*.deb': No such file or directory
cp: cannot stat '../*.changes': No such file or directory
ERROR: Job failed: exit code 1