ARM: dts: msm: add MID details for BWMON counter in sdm670

CPUBW node monitors the traffic generated from CPUSS using BWMON
counters of memnoc in sdm670, add MID mask and match values
to the counters which will count the traffic generated only
from CPUSS.

Change-Id: Ie9c8c221be6ad2ce12a9f166b6b0a748c8ab033c
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>