kernel: Move to Linux 4.17.9-openpower1

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/0002-Release-OpenPower-kernel.patch b/openpower/linux/0002-Release-OpenPower-kernel.patch
index 46d2a50..0aba181 100644
--- a/openpower/linux/0002-Release-OpenPower-kernel.patch
+++ b/openpower/linux/0002-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: Wed, 4 Jul 2018 14:07:48 +1000
+Date: Mon, 23 Jul 2018 14:54:43 +0930
 Subject: [PATCH 2/2] 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 1d740dbe676d..15430bc142eb 100644
+index 693fde3aa317..4636e4992e3a 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 17
- SUBLEVEL = 4
+ SUBLEVEL = 9
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = Merciless Moray