kernel: bump 4.14 to 4.14.70

Refreshed all patches.

Added new patch:
- 192-Revert-ubifs-xattr-Don-t-operate-on-deleted-inodes.patch

This fixes a bug introduced in upstream 4.14.68 which caused targets using
ubifs to produce file-system errors on boot, rendering them useless.

Compile-tested on: cns3xxx, imx6, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

target/linux/ath79/patches-4.14/404-mtd-cybertan-trx-parser.patch

@@ -1,10 +1,10 @@
---- a/drivers/mtd/parsers/Makefile	2018-08-12 02:32:47.951243067 +0200
-+++ b/drivers/mtd/parsers/Makefile	2018-08-12 02:33:09.844626814 +0200
+--- a/drivers/mtd/parsers/Makefile
++++ b/drivers/mtd/parsers/Makefile
 @@ -1 +1,2 @@
 +obj-$(CONFIG_MTD_PARSER_CYBERTAN)	+= parser_cybertan.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
---- a/drivers/mtd/parsers/Kconfig	2018-08-12 02:28:43.987357803 +0200
-+++ b/drivers/mtd/parsers/Kconfig	2018-08-12 02:32:23.237852972 +0200
+--- a/drivers/mtd/parsers/Kconfig
++++ b/drivers/mtd/parsers/Kconfig
 @@ -1,3 +1,11 @@
 +config MTD_PARSER_CYBERTAN
 +	tristate "Parser for Cybertan format partitions"