radio: allow access sys/bus/esoc/devices/ directory.

Fixes this denial:
avc: denied { read } for comm="csbootstraputil" name="devices"
dev="sysfs" ino=28141 scontext=u:r:radio:s0 tcontext=u:object_r:sysfs:s0
tclass=dir permissive=0

Bug: 72066170
Test: boot sailfish without above denial.
Change-Id: I36c7efec8d1e2ce973e7227a8b0df669a82e271f
diff --git a/sepolicy/radio.te b/sepolicy/radio.te
index 1c6d234..762db04 100644
--- a/sepolicy/radio.te
+++ b/sepolicy/radio.te
@@ -3,6 +3,9 @@
 
 allow radio uce_service:service_manager { add find };
 
+# read access to sys/bus/esoc/devices/ directory.
+allow radio sysfs:dir r_dir_perms;
+
 r_dir_file(radio, sysfs_msm_subsys)
 
 # Access to /vendor/framework/qti-vzw-ims-internal.jar for all