Fix gpu sepolicy for recovery

Partial cherry-pick of:

commit aa974fef333d4ff5e4a6d751296c6102e9e51a9d
Author: Greg Hartman <ghartman@google.com>
Date:   Mon Apr 1 15:41:40 2019 -0700

    Configurable gralloc and hwcomposer HAL selection

Bug: 128842306
Test: launch_cvd -boot_image out/target/product/vsoc_x86/recovery.img
Change-Id: Ifc38fe794654ce1b7232128bdfec67b6ac7789fc
diff --git a/shared/sepolicy/file_contexts b/shared/sepolicy/file_contexts
index 4616e5f..601a94e 100644
--- a/shared/sepolicy/file_contexts
+++ b/shared/sepolicy/file_contexts
@@ -8,6 +8,8 @@
 /dev/block/vde  u:object_r:system_block_device:s0
 /dev/block/vdf  u:object_r:system_block_device:s0
 /dev/block/zram0  u:object_r:swap_block_device:s0
+/dev/dri/card0  u:object_r:graphics_device:s0
+/dev/dri/renderD128  u:object_r:graphics_device:s0
 /dev/e2e_managed  u:object_r:region_e2e_test_device:s0
 /dev/e2e_manager  u:object_r:region_e2e_test_device:s0
 /dev/e2e_primary  u:object_r:region_e2e_test_device:s0