[PATCH] Add missing ifdef for VIA RNG code

Almost all the code for the VIA RNG is guarded with __i386__ #ifdefs,
the only exception being the enumeration of RNG types which is used to
index into the rng_vector ops array.  This patch adds an ifdef around
that for consistency and since the guard makes a difference when adding
new RNG types on non-i386 hardware.
Signed-Off-By: NMark Brown <broonie@sirena.org.uk>
Signed-Off-By: NJeff Garzik <jeff@garzik.org>

drivers/char/hw_random.c

@@ -131,7 +131,9 @@ enum {
 	rng_hw_none,
 	rng_hw_intel,
 	rng_hw_amd,
+#ifdef __i386__
 	rng_hw_via,
+#endif
 	rng_hw_geode,
 };