kernel: Move to Linux 4.15.6-openpower1
This moves us to the 4.15 kernel series. The defconfig has been
refreshed, with the major difference being NVMe multipath support is now
enabled in the kernel.
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
new file mode 100644
index 0000000..7946195
--- /dev/null
+++ b/openpower/linux/0003-Release-OpenPower-kernel.patch
@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Joel Stanley <joel@jms.id.au>
+Date: Mon, 26 Feb 2018 10:34:14 +1030
+Subject: [PATCH 3/3] Release OpenPower kernel
+
+Signed-off-by: Joel Stanley <joel@jms.id.au>
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 51563c76bdf6..d0c84b13b1b3 100644
+--- a/Makefile
++++ b/Makefile
+@@ -2,7 +2,7 @@
+ VERSION = 4
+ PATCHLEVEL = 15
+ SUBLEVEL = 6
+-EXTRAVERSION =
++EXTRAVERSION = -openpower1
+ NAME = Fearless Coyote
+
+ # *DOCUMENTATION*