ARM: dts: Set correct value for bus vote

Correct the values of bus vote according to the bus
width. The bus votes need to be set to the bus frequency
multiplied by the bus width. The values calculated were
based on 64 bit bus which is incorrect since the chip has
128 bit bus.

CRs-fixed: 572766
Change-Id: Id1fc5162499b5f1e8cc9a6cc7bd6b81a6cda045d
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>