Android CTS 8.0 Release 1 (OPR1.170623.011)
add a flag control that private libdrm can be chosen am: 20208455f2 am: 77898962bf am: a52a7e90aa
am: c00b18c8bb

Change-Id: I505563e84d6e02d200cdcad3485caf9a77470b90