microdroid_manager uses kernlog

Bug: 189805435
Test: atest MicrodroidTestHostCases
adb shell into the VM and execute logcat

Change-Id: I2724773c237c4ae208671ee206896679488ba7da
diff --git a/microdroid_manager/microdroid_manager.rc b/microdroid_manager/microdroid_manager.rc
index 4f194a3..60d8ab7 100644
--- a/microdroid_manager/microdroid_manager.rc
+++ b/microdroid_manager/microdroid_manager.rc
@@ -1,7 +1,6 @@
 service microdroid_manager /system/bin/microdroid_manager
     disabled
-    # TODO(b/189805435) for now redirect stdio to kmsg
-    stdio_to_kmsg
+    file /dev/kmsg w
     setenv RUST_LOG info
     # TODO(jooyung) remove this when microdroid_manager becomes a daemon
-    oneshot
\ No newline at end of file
+    oneshot