defconfig: msm: Enable cpufreq stats for sdm670

Enable cpufreq stats for sdm670 perf and debug defconfig.
Some CTS testcases are dependent on the value of this stats.

Change-Id: Ie0952c985aa627c5a549d01af47e8e367cc2ded3
Signed-off-by: Shadab Naseem <snaseem@codeaurora.org>
diff --git a/arch/arm64/configs/sdm670_defconfig b/arch/arm64/configs/sdm670_defconfig
index 9a6da1f..fa802d2 100644
--- a/arch/arm64/configs/sdm670_defconfig
+++ b/arch/arm64/configs/sdm670_defconfig
@@ -89,6 +89,7 @@
 CONFIG_PM_DEBUG=y
 CONFIG_CPU_IDLE=y
 CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_FREQ_GOV_ONDEMAND=y