init: switch property_get to use __system_property_get

(cherry picked from commit 2deedfe0b1ac86ebd62d19cf7da9e7dcb508ab09)

Change-Id: If3fba2cc1dd5c167b0924ddfe42dbe2e6387208a
diff --git a/init/property_service.h b/init/property_service.h
index b9d1bf6..b08c118 100644
--- a/init/property_service.h
+++ b/init/property_service.h
@@ -18,6 +18,7 @@
 #define _INIT_PROPERTY_H
 
 #include <stdbool.h>
+#include <sys/system_properties.h>
 
 extern void handle_property_set_fd(void);
 extern void property_init(void);
@@ -25,7 +26,7 @@
 extern void load_persist_props(void);
 extern void start_property_service(void);
 void get_property_workspace(int *fd, int *sz);
-extern const char* property_get(const char *name);
+extern int property_get(const char *name, char value[PROP_VALUE_MAX]);
 extern int property_set(const char *name, const char *value);
 extern int properties_inited();
 int get_property_set_fd(void);