Merge "DO NOT MERGE: IOMX: work against metadata buffer spoofing" into lmp-dev am: 6981afc6ac  -s ours am: efd392db1d am: d4b1c832c9 am: 0748e8945e  -s ours am: 0676b43165 am: 109a42f811 am: 809027b0bf am: fdd84ef103  -s ours am: 9bb785b7a6 am: 64ad9c1508
am: 37490f8c21

Change-Id: I41c4ce3a82fb953fb0d25f6d97c7e280934c0402