MTP: try to fix sim build

Change-Id: I25b7bbecf61043e326105c74b2244036beda7c43
Signed-off-by: Mike Lockwood <lockwood@android.com>
diff --git a/media/jni/android_media_MtpServer.cpp b/media/jni/android_media_MtpServer.cpp
index 3da3165..4567965 100644
--- a/media/jni/android_media_MtpServer.cpp
+++ b/media/jni/android_media_MtpServer.cpp
@@ -25,7 +25,9 @@
 #include <sys/ioctl.h>
 #include <utils/threads.h>
 
+#ifdef HAVE_ANDROID_OS
 #include <linux/usb/f_mtp.h>
+#endif
 
 #include "jni.h"
 #include "JNIHelp.h"