defconfig: arm64: enable MSM_RUN_QUEUE_STATS for MSM targets

Enable collection of runqueue statistics, and their export to
userspace via /sys/devices/system/cpu/cpu<N>/rq-stats/.

Change-Id: I291e80042277ac4af9e0ddef9994ddd468c7ff73
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>