Don't allocate primary framebuffer from carveout. Allocate them from IOMMU heap just like the external framebuffer. Bug: 7626586 Change-Id: I52a8db1a34d19856302b38d2c30c1290d1f2f060 Signed-off-by: Saurabh Shah <saurshah@codeaurora.org> Signed-off-by: Iliyan Malchev <malchev@google.com>