kernel: Move to Linux 4.14.8-openpower1

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/0003-Release-OpenPower-kernel.patch b/openpower/linux/0003-Release-OpenPower-kernel.patch
index 3874278..76d9208 100644
--- a/openpower/linux/0003-Release-OpenPower-kernel.patch
+++ b/openpower/linux/0003-Release-OpenPower-kernel.patch
@@ -1,6 +1,6 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Joel Stanley <joel@jms.id.au>
-Date: Fri, 15 Dec 2017 09:31:57 +1030
+Date: Thu, 21 Dec 2017 12:54:15 +1030
 Subject: [PATCH 3/3] Release OpenPower kernel
 
 Signed-off-by: Joel Stanley <joel@jms.id.au>
@@ -9,13 +9,13 @@
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile b/Makefile
-index eabbd7748a24..31c8f4bb2fe1 100644
+index 97b5ae76ac8c..6bc09c01fd2a 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 14
- SUBLEVEL = 6
+ SUBLEVEL = 8
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = Petit Gorille