compositor-android.c: Add missing include log.h

Due to missing include, the messages from
compositor-android are not processed.

Thanks to collegue for reminding of this issue.

src/compositor-android.c

@@ -30,6 +30,7 @@
 
 #include "compositor.h"
 #include "android-framebuffer.h"
+#include "log.h"
 
 struct android_compositor;