ion: change ion buffer flags

This syncs up our ion buffer flags in ion.h with upstream (using
ION_FLAG_CACHED instead of CACHED and UNCACHED).

Change-Id: Ic5bd6cd5b70aa725bf16fd0ee81cbaafd19366ed
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
[lauraa@codeaurora.org: Remove file not in tree]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
ion: remove obsolete ion flags

The symbols CACHED and UNCACHED have been replaced by ION_FLAG_CACHED
upstream. This removes them from the kernel.

Change-Id: Icc8d96d891bdc4710d0c567870aa07d03be811c6
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
[lauraa@codeaurora.org: Small argument change]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>

Conflicts:
	arch/arm/mach-msm/qdsp5/adsp_driver.c
	drivers/media/video/msm/gemini/msm_gemini_platform.c
	drivers/media/video/msm/msm_mctl_buf.c
	drivers/media/video/msm/msm_mem.c
	drivers/media/video/videobuf2-msm-mem.c
	drivers/video/msm/vidc/1080p/ddl/vcd_ddl_utils.c
	drivers/video/msm/vidc/1080p/resource_tracker/vcd_res_tracker.c