ARM: dts: msm: Set rcu_expedited for sdm845

Some of the app launches show approximately ~40ms rcu uninterruptible
sleep. As per the strace logs:

(Begin)
684.310341: sched_switch: prev_comm=om.adobe.reader prev_pid=5776
prev_prio=110 prev_state=D ==> next_comm=swapper/5 next_pid=0 next_prio=120

684.350178: sched_switch: prev_comm=swapper/4 prev_pid=0 prev_prio=120
prev_state=R ==> next_comm=rcuos/5 next_pid=54 next_prio=120

(End)
684.350196: sched_wakeup: comm=om.adobe.reader pid=5776 prio=110
target_cpu=005

To mitigate these performance issues, set rcu_expedited to use expedited
grace periods primitives.

Change-Id: Ifcf9358bec141ed7c2c1204cf1cba713617d2135
Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>