ARM: dts: msm: Do not reset SPM start address

As per ARM errata 802022, all the secondary cores need to synchronize
with the primary core during wakeup as CPU can interfere with the
duplicate tag RAM invalidation process for another CPU and cause
deadlock. To implement this errata whenever primary core comes out
of power collapse, it wakes up secondary cores for synchronization. The
secondary cores after sync, will be put back to sleep on the same SPM.
Hence do not reset SPM start address.

Change-Id: I61b8ce54ea4792f3c9e17010716092fd6451a52c
Signed-off-by: Priyanka Mathur <pmathur@codeaurora.org>