msm8953-common: Enable sched_boost in early_init

Enable sched_boost in early_init for msm8953 targes.
Sched_boost is in order to migrate threads onto perf
cluster and will be disabled at post_boot.

Change-Id: Ica92a3b48a32fc63e33776f0079314d8b7faeaf7

rootdir/init.target.rc

@@ -27,6 +27,7 @@
 #
 #
 on early-init
+    write /proc/sys/kernel/sched_boost 1
     symlink /data/tombstones /tombstones
 
 on fs