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-0005-powerpc-kexec-Reset-HILE-before-kexec_sequence.patch b/openpower/linux/linux-0005-powerpc-kexec-Reset-HILE-before-kexec_sequence.patch
index ac3f985..05e884d 100644
--- a/openpower/linux/linux-0005-powerpc-kexec-Reset-HILE-before-kexec_sequence.patch
+++ b/openpower/linux/linux-0005-powerpc-kexec-Reset-HILE-before-kexec_sequence.patch
@@ -1,4 +1,4 @@
-From 051c24b3c8b32db05e575e29c3a9d66c924e4bfc Mon Sep 17 00:00:00 2001
+From 67b97ec555099b7f84cd98c6f8e93cac588aa830 Mon Sep 17 00:00:00 2001
 From: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
 Date: Wed, 22 Jul 2015 11:09:15 +1000
 Subject: [PATCH 05/17] powerpc/kexec: Reset HILE before kexec_sequence