msm: apq8084: Enable the memory hole Kconfigs

The apq8084 has a hole in the memory map. Select the appropriate
Kconfig options for this hole to be used effectively.

Change-Id: I7f3d8485594a2e069e8b3c862f9aa07964b5640a
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>