Split out ServiceList and ServiceParser from service.cpp/.h

These always should have been in their own files.

Test: build
Change-Id: I201109b5ee63016e78901bbfd404846d45e1d4e6
diff --git a/init/reboot.cpp b/init/reboot.cpp
index eaba3cc..d9d885c 100644
--- a/init/reboot.cpp
+++ b/init/reboot.cpp
@@ -55,6 +55,7 @@
 #include "property_service.h"
 #include "reboot_utils.h"
 #include "service.h"
+#include "service_list.h"
 #include "sigchld_handler.h"
 
 #define PROC_SYSRQ "/proc/sysrq-trigger"