package/mtd: bump to version 2.1.5

https://lists.infradead.org/pipermail/linux-mtd/2022-October/095383.html
https://lists.infradead.org/pipermail/linux-mtd/2022-January/090742.html

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/mtd/mtd.hash

@@ -1,4 +1,4 @@
 # Locally calculated after checking pgp signature
-# ftp://ftp.infradead.org/pub/mtd-utils/mtd-utils-2.1.3.tar.bz2.asc
-sha256  11305a5daf6fc6ed85120695c8593290b577effb039adbfa63d35b4418ff5630  mtd-utils-2.1.3.tar.bz2
+# ftp://ftp.infradead.org/pub/mtd-utils/mtd-utils-2.1.5.tar.bz2.asc
+sha256  386e27fd121699b6b729bc2e8e04dda987b31cca6b16e12fb6cc6dcf26449f46  mtd-utils-2.1.5.tar.bz2
 sha256  dcc100d4161cc0b7177545ab6e47216f84857cda3843847c792a25289852dcaa  COPYING

package/mtd/mtd.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MTD_VERSION = 2.1.3
+MTD_VERSION = 2.1.5
 MTD_SOURCE = mtd-utils-$(MTD_VERSION).tar.bz2
 MTD_SITE = ftp://ftp.infradead.org/pub/mtd-utils
 MTD_LICENSE = GPL-2.0