ARM: dts: msm: Add compute context banks for sdm630

Enable FastRPC by supporting new context banks on ADSP
for sdm630.

Change-Id: I6379e054f1a30919a3713b09ae506261a6ada34b
Acked-by: Chenna Kesava Raju <chennak@qti.qualcomm.com>
Signed-off-by: Sathish Ambley <sathishambley@codeaurora.org>