Explicit init .rc user.

Set the user explicitly.

For boringssl self-test, changed to 'nobody' since
this test doesn't require permissions.

Bug: 276813155
Test: boot, check can 'nobody' can still write to kmesg.
Change-Id: I32f7134e83183bd054bffbb22d412d7a2dc0ad09
diff --git a/rootdir/init.rc b/rootdir/init.rc
index b165778..d755b50 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -475,25 +475,28 @@
     stdio_to_kmsg
     # Explicitly specify that boringssl_self_test32 doesn't require any capabilities
     capabilities
+    user nobody
 
 service boringssl_self_test64 /system/bin/boringssl_self_test64
     reboot_on_failure reboot,boringssl-self-check-failed
     stdio_to_kmsg
     # Explicitly specify that boringssl_self_test64 doesn't require any capabilities
     capabilities
+    user nobody
 
 service boringssl_self_test_apex32 /apex/com.android.conscrypt/bin/boringssl_self_test32
     reboot_on_failure reboot,boringssl-self-check-failed
     stdio_to_kmsg
     # Explicitly specify that boringssl_self_test_apex32 doesn't require any capabilities
     capabilities
+    user nobody
 
 service boringssl_self_test_apex64 /apex/com.android.conscrypt/bin/boringssl_self_test64
     reboot_on_failure reboot,boringssl-self-check-failed
     stdio_to_kmsg
     # Explicitly specify that boringssl_self_test_apex64 doesn't require any capabilities
     capabilities
-
+    user nobody
 
 # Healthd can trigger a full boot from charger mode by signaling this
 # property when the power button is held.
@@ -1260,6 +1263,7 @@
     class core
     critical
     seclabel u:r:ueventd:s0
+    user root
     shutdown critical
 
 service console /system/bin/sh