Move net.h to include/net/

+ Move net-android.c and net.c to net/
+ Rename net-checksum.c to net/checksum.c
+ Move sockets.h and shaper.h to include/android/
  and sockets.c + shaper.c to android/

+ Move vgafont.h to ui/

Change-Id: I2659a919a316d3f95aac0f9924833eeee4cb5592
diff --git a/vl-android-ui.c b/vl-android-ui.c
index c14fd9b..b711032 100644
--- a/vl-android-ui.c
+++ b/vl-android-ui.c
@@ -37,12 +37,12 @@
 #endif
 
 #include "qemu-common.h"
-#include "net.h"
+#include "net/net.h"
 #include "ui/console.h"
 #include "qemu/timer.h"
 #include "qemu-char.h"
 #include "block.h"
-#include "sockets.h"
+#include "android/sockets.h"
 #include "audio/audio.h"
 
 #include "android/android.h"