firewire: endianess annotations

Kills warnings from 'make C=1 CHECKFLAGS="-D__CHECK_ENDIAN__" modules':

drivers/firewire/fw-transaction.c:771:10: warning: incorrect type in assignment (different base types)
drivers/firewire/fw-transaction.c:771:10:    expected unsigned int [unsigned] [usertype] <noident>
drivers/firewire/fw-transaction.c:771:10:    got restricted unsigned int [usertype] <noident>
drivers/firewire/fw-transaction.h:93:10: warning: incorrect type in assignment (different base types)
drivers/firewire/fw-transaction.h:93:10:    expected unsigned int [unsigned] [usertype] <noident>
drivers/firewire/fw-transaction.h:93:10:    got restricted unsigned int [usertype] <noident>
drivers/firewire/fw-ohci.c:1490:8: warning: restricted degrades to integer
drivers/firewire/fw-ohci.c:1490:35: warning: restricted degrades to integer
drivers/firewire/fw-ohci.c:1516:5: warning: cast to restricted type

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Jarod Wilson <jwilson@redhat.com>
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
index 09cb728..a43bb22 100644
--- a/drivers/firewire/fw-transaction.h
+++ b/drivers/firewire/fw-transaction.h
@@ -86,12 +86,12 @@
 static inline void
 fw_memcpy_from_be32(void *_dst, void *_src, size_t size)
 {
-	u32 *dst = _dst;
-	u32 *src = _src;
+	u32    *dst = _dst;
+	__be32 *src = _src;
 	int i;
 
 	for (i = 0; i < size / 4; i++)
-		dst[i] = cpu_to_be32(src[i]);
+		dst[i] = be32_to_cpu(src[i]);
 }
 
 static inline void