arm/dt: msm8974: Interleave Venus OCMEM ports

Venus OCMEM ports should be interleaved similar to the Venus
ports on MM NoC. This patch adds the necessary changes in
device-tree configuration.

Change-Id: I5d7f424b7e0d327ccaeec1aa651a8896cf386ccf
Signed-off-by: Gagan Mac <gmac@codeaurora.org>