surfaceflinger access to sysfs_graphics.

These files are now labeled as sysfs_graphics:
/sys/devices/virtual/graphics/fb*
/sys/devices/soc.0/fd900000.qcom,mdss_mdp/caps

surfaceflinger, hal_graphics_allocator_default have read access
to sysfs_graphics.

Bug: 65643247
Test: aosp_bullhead boots without denials from surfaceflinger or to
sysfs_graphics.
Change-Id: Idcda3627df4ac5f2c14118c756373556b070b08a
3 files changed