sepolicy : Allow APK files to access SCVE libs

APK needs access for SCVE libs which are on vendor side for
providing the system access for the hals. 
These SCVE libs run on different platforms such as GPU,
dsp and cpu, which uses the ion memory. 

Change-Id: Ic84ea0981f7bdcaee7d20a2708d4d5d9a840d6ca