Bluetooth: Silence sparse warning

Silence sparse warning shown below:
...
net/bluetooth/mgmt.c:448:15: warning: cast to restricted __le32
...

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f590dfb..1d3e3d0 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -443,9 +443,7 @@
 			return 0;
 	}
 
-	memcpy(&val, &uuid128[12], 4);
-
-	val = le32_to_cpu(val);
+	val = get_unaligned_le32(&uuid128[12]);
 	if (val > 0xffff)
 		return 0;