ARM: dts: msm: Add compute context banks for msmskunk

Add context banks associated with compute dsp for msmskunk that
allows for compute tasks to use these contaxt banks one per
process to make RPC calls into compute dsp.

Change-Id: I7dab06857e6ac4c6cc651f7b95b7e1f502d83c03
Signed-off-by: Sathish Ambley <sathishambley@codeaurora.org>