[main] add init routines for fs and bio layer, will move to better spot later

kernel/main.c

@@ -111,6 +111,14 @@ static int bootstrap2(void *arg)
 
 	arch_init();
 
+	// XXX put this somewhere else
+#if WITH_LIB_BIO
+	bio_init();
+#endif
+#if WITH_LIB_FS
+	fs_init();
+#endif
+
 	// initialize the rest of the platform
 	dprintf(SPEW, "initializing platform\n");
 	platform_init();