BACKPORT: FROMLIST: arm64: dts: qcom: qcs404: Add cpufreq support

Support CPU frequency scaling on qcs404.

Co-developed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
(cherry picked from commit 74548dd0ced9fd8a0a79a5acb0341bffd676aab8)
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed@linaro.org>