Add sepolicy for fastbootd

Also allow adb and fastboot to talk to recovery
through recovery_socket. This enables changing
between modes with usb commands.

Test: No selinux denials
Bug: 78793464
Change-Id: I80c54d4eaf3b94a1fe26d2280af4e57cb1593790
diff --git a/private/file_contexts b/private/file_contexts
index 003d66c..0a77f6b 100644
--- a/private/file_contexts
+++ b/private/file_contexts
@@ -149,6 +149,7 @@
 /dev/socket/pdx/system/vr/display/vsync	u:object_r:pdx_display_vsync_endpoint_socket:s0
 /dev/socket/property_service	u:object_r:property_socket:s0
 /dev/socket/racoon	u:object_r:racoon_socket:s0
+/dev/socket/recovery    u:object_r:recovery_socket:s0
 /dev/socket/rild	u:object_r:rild_socket:s0
 /dev/socket/rild-debug	u:object_r:rild_debug_socket:s0
 /dev/socket/tombstoned_crash u:object_r:tombstoned_crash_socket:s0