Kconfig: enable default config of cpu freq qcom for msm8953

Enable CPU_FREQ_QCOM by default for msm8953/sdm450.

Change-Id: I8195901723694a06be3373f2f135cb9e35442ba1
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>