linux-phytec-fsl

MLK-14587-2: ARM: imx_v7_defconfig: enable cpufreq stats

The default on 4.1 was to be enabled by default, but that changed in
4.9. Since we have tests that depend on it and it does not add too
much overhead, explicitly enable it in the config.

Signed-off-by: Octavian Purdila <octavian.purdila@nxp.com>