include direct.h for _mkdir

Bug: 14416410

The new mingw-w64 toolchain x86_64-w64-mingw32-4.8 no longer
declares _mkdir in io.h.

Change-Id: I624b52d2f35db54a7f28df09f997fc883b0f0557

tools/aapt/CacheUpdater.h

@@ -12,6 +12,9 @@
 #include <sys/stat.h>
 #include <stdio.h>
 #include "Images.h"
+#ifdef HAVE_MS_C_RUNTIME
+#include <direct.h>
+#endif
 
 using namespace android;
 

tools/aidl/aidl.cpp

@@ -16,6 +16,7 @@
 
 #ifdef HAVE_MS_C_RUNTIME
 #include <io.h>
+#include <direct.h>
 #include <sys/stat.h>
 #endif