microdroid: Add device-mapper capabilities to ueventd.

Bug: 286011429
Test: treehugger
(cherry picked from https://android-review.googlesource.com/q/commit:40427e7f1349491a9947ff4e520df98a826da4de)
Merged-In: I87d7836ea6e875712c0a01b52a22c90745d53a2a

Change-Id: I4aa290483e52ad7429424ba8fbe68390f2100913
diff --git a/microdroid/init.rc b/microdroid/init.rc
index 29f8970..2298821 100644
--- a/microdroid/init.rc
+++ b/microdroid/init.rc
@@ -146,10 +146,12 @@
     capabilities CHOWN DAC_OVERRIDE DAC_READ_SEARCH FOWNER SYS_ADMIN
 
 service ueventd /system/bin/ueventd
+    user root
+    group root
     class core
     critical
     seclabel u:r:ueventd:s0
-    capabilities CHOWN DAC_OVERRIDE DAC_READ_SEARCH FOWNER FSETID MKNOD NET_ADMIN SETGID SETUID SYS_MODULE SYS_RAWIO
+    capabilities CHOWN DAC_OVERRIDE DAC_READ_SEARCH FOWNER FSETID MKNOD NET_ADMIN SETGID SETUID SYS_MODULE SYS_RAWIO SYS_ADMIN
 
 service console /system/bin/sh
     class core