LP64 binaries should talk to debuggerd64.

Change-Id: I7eb30f9d04f80b6b45d3148757970d3f1117493c
diff --git a/linker/debugger.cpp b/linker/debugger.cpp
index 92e9dac..2ccd176 100644
--- a/linker/debugger.cpp
+++ b/linker/debugger.cpp
@@ -40,7 +40,11 @@
 
 extern "C" int tgkill(int tgid, int tid, int sig);
 
+#if __LP64__
+#define DEBUGGER_SOCKET_NAME "android:debuggerd64"
+#else
 #define DEBUGGER_SOCKET_NAME "android:debuggerd"
+#endif
 
 enum debugger_action_t {
     // dump a crash