kernel: Move to Linux 4.17.1-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 f0983e5..b617e8d 100644
--- a/openpower/linux/0003-Release-OpenPower-kernel.patch
+++ b/openpower/linux/0003-Release-OpenPower-kernel.patch
@@ -9,13 +9,13 @@
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile b/Makefile
-index 554dcaddbce4..0feb58c9ad1b 100644
+index e551c9af6a06..1ec18f8a0e72 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 17
- SUBLEVEL = 0
+ SUBLEVEL = 1
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = Merciless Moray