Allow adbd to use graphics fds

Bug: 35708449
Test: AS screen capture
Change-Id: I53f1604e1ee9c9b32c6932f1b8944708f5012e5f

private/adbd.te

@@ -70,6 +70,9 @@ binder_call(adbd, surfaceflinger)
 allow adbd gpu_device:chr_file rw_file_perms;
 allow adbd ion_device:chr_file rw_file_perms;
 r_dir_file(adbd, system_file)
+# Needed for Android Studio screenshot
+hwbinder_use(adbd)
+allow adbd hal_graphics_allocator:fd use;
 
 # Read /data/misc/adb/adb_keys.
 allow adbd adb_keys_file:dir search;