ihk_os_getrusage(): Compile LWK-specific results in mcctrl

1. User asks mcctrl for the result via ihk_os_getrusage() with passing void *
2. mcctrl compiles the results and passes them to the user
3. User interprets it by using the type defined in the LWK-specific header

kernel/mem.c

@@ -38,7 +38,7 @@
 #include <cpulocal.h>
 #include <init.h>
 #include <cas.h>
-#include <rusage.h>
+#include <rusage_private.h>
 #include <syscall.h>
 #include <profile.h>
 #include <process.h>