ARM: dts: msm: Update CVP IOMMU CB virtual range

Update the virtual address range of CVP (Computer Vision Process)
IOMMU CB (Context Bank) 4 to match the programming guide.

Change-Id: Ie955522773e2ef9f50735ea0075c16a585c7bbb2
Signed-off-by: George Shen <sqiao@codeaurora.org>