MIPS: Update lemote2f_defconfig for CPU_FREQ_STAT change

Since linux-4.8, CPU_FREQ_STAT is a bool symbol, causing a warning in
kernelci.org:

arch/mips/configs/lemote2f_defconfig:42:warning: symbol value 'm' invalid for CPU_FREQ_STAT

This updates the defconfig to have the feature built-in.

Fixes: 1aefc75b ("cpufreq: stats: Make the stats code non-modular")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/15000/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/configs/lemote2f_defconfig

@@ -39,7 +39,7 @@ CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION="/dev/hda3"
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEBUG=y
-CONFIG_CPU_FREQ_STAT=m
+CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_STAT_DETAILS=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=m