Release 4.4.21-openpower1

v4.4.21 stable release, which includes a fix for the fix for the NVMe
issue that is important for OpenPower machines.

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch b/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch
index 3dd4236..d62adb5 100644
--- a/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch
+++ b/openpower/linux/0007-tty-hvc-Use-opal-irqchip-interface-if-available.patch
@@ -1,4 +1,4 @@
-From 2b2979b659c31784a0e7039a3ed5b5935abd9908 Mon Sep 17 00:00:00 2001
+From 2d69ffcf74ecc917a4cb3efdb0f29b466658ddd7 Mon Sep 17 00:00:00 2001
 From: Samuel Mendoza-Jonas <sam@mendozajonas.com>
 Date: Wed, 13 Jul 2016 11:15:42 +1000
 Subject: [PATCH 7/9] tty/hvc: Use opal irqchip interface if available