Rename libdebuggerd_client to libdebuggerd_handler.

Bug: http://b/30705528
Test: debuggerd_test
Change-Id: I625a9a2e7304d172873ba9344b74efa57ad7bdad
diff --git a/linker/linker_main.cpp b/linker/linker_main.cpp
index dad7409..d5bb457 100644
--- a/linker/linker_main.cpp
+++ b/linker/linker_main.cpp
@@ -41,7 +41,7 @@
 #include "android-base/strings.h"
 #include "android-base/stringprintf.h"
 #ifdef __ANDROID__
-#include "debuggerd/client.h"
+#include "debuggerd/handler.h"
 #endif
 
 #include <vector>