crash_dump: populate uid field.

Bug: http://b/132359035
Test: manual
Change-Id: I99d8446024fc2d9395132dea45f03317976a9b62
diff --git a/debuggerd/crash_dump.cpp b/debuggerd/crash_dump.cpp
index c608a8c..cb55745 100644
--- a/debuggerd/crash_dump.cpp
+++ b/debuggerd/crash_dump.cpp
@@ -463,6 +463,7 @@
       ThreadInfo info;
       info.pid = target_process;
       info.tid = thread;
+      info.uid = getuid();
       info.process_name = process_name;
       info.thread_name = get_thread_name(thread);