Release Linux 4.11.0-openpower1

New upstream release. This includes all of the patches we were carrying
aginst the Aspeed ast DRM driver.

We still carry three patches:

 - XCHI
   * xhci: do not halt the secondary HCD
   * xhci: Use xhci_pci_remove for xhci device shutdown
 - OPAL
  * powerpc/powernv: Add OPAL exports attributes to sysfs

The skiroot_p9 and skiroot defconifgs were regenerated against the
upstream kernel.

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/0002-xhci-do-not-halt-the-secondary-HCD.patch b/openpower/linux/0002-xhci-do-not-halt-the-secondary-HCD.patch
index 92c5a95..ad7d0a1 100644
--- a/openpower/linux/0002-xhci-do-not-halt-the-secondary-HCD.patch
+++ b/openpower/linux/0002-xhci-do-not-halt-the-secondary-HCD.patch
@@ -1,7 +1,7 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Joel Stanley <joel@jms.id.au>
 Date: Tue, 19 Jul 2016 22:43:26 +0930
-Subject: [PATCH 02/12] xhci: do not halt the secondary HCD
+Subject: [PATCH 2/4] xhci: do not halt the secondary HCD
 
 We can't halt the secondary HCD, because it's also the primary HCD,
 which will cause problems if we have devices attached to the primary
@@ -13,7 +13,7 @@
  1 file changed, 15 insertions(+), 5 deletions(-)
 
 diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
-index 9a0ec116654a..315020dac049 100644
+index 953fd8f62df0..d17a7039b154 100644
 --- a/drivers/usb/host/xhci.c
 +++ b/drivers/usb/host/xhci.c
 @@ -689,6 +689,21 @@ void xhci_stop(struct usb_hcd *hcd)