linux: update to v4.2.5-openpower1

 - Rebased on upstream stable release v4.2.5

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/linux-0002-xhci-Use-xhci_pci_remove-for-xhci-device-shutdown.patch b/openpower/linux/linux-0002-xhci-Use-xhci_pci_remove-for-xhci-device-shutdown.patch
index f3d1f88..b97fe3d 100644
--- a/openpower/linux/linux-0002-xhci-Use-xhci_pci_remove-for-xhci-device-shutdown.patch
+++ b/openpower/linux/linux-0002-xhci-Use-xhci_pci_remove-for-xhci-device-shutdown.patch
@@ -1,4 +1,4 @@
-From 8880fc2d44e538e4806780afc76437e844126da9 Mon Sep 17 00:00:00 2001
+From bb607985cc1eec5693851dd68af1ab0a87986ec5 Mon Sep 17 00:00:00 2001
 From: Thadeu Lima De Souza Cascardo <thadeul@br.ibm.com>
 Date: Tue, 25 Mar 2014 10:45:16 -0400
 Subject: [PATCH 02/17] xhci: Use xhci_pci_remove for xhci device shutdown