ARM: dts: msm: increase ion heap size for SDM670/710

Increase ion heap size from 4MB to 8MB to meet CTS DRM cases
requirement.

Change-Id: I223994c5c8bcd6c150cfd6e35fcaaf8ee3c62c5f
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
1 file changed