kernel: Move to Linux v4.19.13-openpower1

PowerPC fixes (v4.19.7 through to v4.19.13):

 powerpc: Look for "stdout-path" when setting up legacy consoles
 powerpc/msi: Fix NULL pointer access in teardown code
 powerpc/function_graph: Simplify with function_graph_enter()

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 7218636..9ca189d 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 c928dbbff881..2f5aff97f387 100644
+index dae3be1b9c8f..bd675c5db608 100644
 --- a/drivers/usb/host/xhci.c
 +++ b/drivers/usb/host/xhci.c
 @@ -794,6 +794,7 @@ static void xhci_shutdown(struct usb_hcd *hcd)
diff --git a/openpower/linux/0002-Release-OpenPower-kernel.patch b/openpower/linux/0002-Release-OpenPower-kernel.patch
index dfaea7c..cd0a91b 100644
--- a/openpower/linux/0002-Release-OpenPower-kernel.patch
+++ b/openpower/linux/0002-Release-OpenPower-kernel.patch
@@ -9,13 +9,13 @@
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile b/Makefile
-index 20cbb8e84650..8b36760c6732 100644
+index 892ff14cbc9d..eb33670b9cf9 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -2,7 +2,7 @@
  VERSION = 4
  PATCHLEVEL = 19
- SUBLEVEL = 6
+ SUBLEVEL = 13
 -EXTRAVERSION =
 +EXTRAVERSION = -openpower1
  NAME = "People's Front"