kernel: Move to Linux 4.16.12-openpower1

Interesting fixes: powerpc store forarding barrier, mlx4, aacraid,
networking.

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch b/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
index c26cfa8..a6214a5 100644
--- a/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
+++ b/openpower/linux/0001-xhci-Reset-controller-on-xhci-shutdown.patch
@@ -14,7 +14,7 @@
  1 file changed, 1 insertion(+)
 
 diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
-index b60a02c50b89..e335b35ff3ba 100644
+index bd281a96485c..cff05abf3961 100644
 --- a/drivers/usb/host/xhci.c
 +++ b/drivers/usb/host/xhci.c
 @@ -717,6 +717,7 @@ static void xhci_shutdown(struct usb_hcd *hcd)
diff --git a/openpower/linux/0003-Release-OpenPower-kernel.patch b/openpower/linux/0003-Release-OpenPower-kernel.patch
index ee97fae..2cbcb11 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: Thu, 24 May 2018 12:51:06 +0930
+Date: Mon, 28 May 2018 13:30:59 +0930
 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 79c191442771..a7657035f0c3 100644
+index ded9e8480d74..c5c3d5cebec4 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 16
- SUBLEVEL = 11
+ SUBLEVEL = 12
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = Fearless Coyote