Add more PowerVR exceptions for FileSystemPermissionTest

/dev/dri/card0 is based on Linux DRM framework and will use this file node
for graphic rendering and video encoding/decoding. Render service is
accessed by all EGL applications for accessing GPU because EGL applications
aren't required to have any special permissions. All GPU contexts are
protected from each other with GPU MMU. The parameters are well checked to
avoid security issue. Qualcomm uses private framework and use file node
"/dev/kgsl-3d0" (which is already on the whitetlist in the CTS test) for
similar functionality.

Since some video applications aren't required to have any special
permissions, /dev/dri/card0 must be accessible to all clients. Video driver
ioctl interfaces on /dev/dri/card0 are mainly memory, fence, command buffer
related. It does not allow direct access to registers on the hardware. All
user space passed parameter are checked carefully

/dev/card0 is the symbol link to /dev/dri/card0

Intel had thoughtfully reviewed these interfaces in terms of security
concern and believe they are secure.

Change-Id: Icb93665d845d8f95df16fb710eb0ed4e222c23d3
Signed-off-by: Leon Hsiao <leon.hsiao@intel.com>
Signed-off-by: Jun Nie <jun.nie@intel.com>
Signed-off-by: Guobin Zhang <guobin.zhang@intel.com>