Emit launcher error to kernel log

stderr is redirected to /dev/null. We should use kernel log, which is
finally redirected to microdroid console.

Bug: 261110181
Test: boot microdroid and see console log
Change-Id: Ie76b9d155076c8a88b6c3a75b472d87829f81a8a
diff --git a/launcher/Android.bp b/launcher/Android.bp
index 123ec2e..6c6417f 100644
--- a/launcher/Android.bp
+++ b/launcher/Android.bp
@@ -6,8 +6,10 @@
     name: "microdroid_launcher",
     srcs: ["main.cpp"],
     shared_libs: [
+        "libbase",
         "libdl",
         "libdl_android",
+        "liblog",
     ],
     header_libs: ["vm_payload_headers"],
 }