ARM: dts: Correct VENUS_WRAPPER_VBIF_PRIORITY_LEVEL for apq8084

The correct register setting for VENUS_WRAPPER_VBIF_PRIORITY_LEVEL
should be 0x5555556 rather than 0x0.

Change-Id: I88980fd9461562e9aecb32a2464b7bee1c5a7483
Signed-off-by: Deva Ramasubramanian <dramasub@codeaurora.org>