kernel: backport upstream ubifs default compression selection fix

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

target/linux/generic/backport-4.19/500-v4.20-ubifs-Fix-default-compression-selection-in-ubifs.patch

@@ -1,7 +1,16 @@
+From d62e98ed1efcaa94caa004f622944afdce5f1c3c Mon Sep 17 00:00:00 2001
 From: Gabor Juhos <juhosg@openwrt.org>
-Subject: fs: ubifs: fix default compression selection in ubifs
+Date: Sun, 9 Dec 2018 18:12:13 +0100
+Subject: [PATCH] ubifs: Fix default compression selection in ubifs
+
+When ubifs is build without the LZO compressor and no compressor is
+given the creation of the default file system will fail. before
+selection the LZO compressor check if it is present and if not fall back
+to the zlib or none.
 
 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+Signed-off-by: Richard Weinberger <richard@nod.at>
 ---
  fs/ubifs/sb.c | 13 ++++++++++++-
  1 file changed, 12 insertions(+), 1 deletion(-)