Release 4.4.18-openpower1

  - v4.4.18 stable release
  - drop 'scsi: ignore errors from scsi_dh_add_device()' as this is
    included in the upstream stable release
  - drop 'drivers/drm/ast: Update VGA Ownership register value' as
    this was found to not fix the issue it was claimed to have fixed

Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/openpower/configs/habanero_defconfig b/openpower/configs/habanero_defconfig
index 78fe88e..1e6cf6d 100644
--- a/openpower/configs/habanero_defconfig
+++ b/openpower/configs/habanero_defconfig
@@ -42,7 +42,7 @@
 BR2_ROOTFS_POST_BUILD_SCRIPT="../openpower/scripts/fixup-target-var"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.4.17"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.4.18"
 BR2_KERNEL_HEADERS_4_4=y
 BR2_BINUTILS_VERSION_2_26_X=y
 BR2_LINUX_KERNEL_PATCH="$(BR2_EXTERNAL)/linux"