mtd-utils: upgrade 2.1.4 -> 2.1.5

Raw short log since the 2.1.4 release:

Alex Henrie (1):
       mkfs.jffs2: fix spelling of --compression-mode parameter in help text

Andrew Mellor (1):
       ubinfo: Fix --vol_id return code for absent volume id

Christophe Kerello (1):
       nandflipbits: fix corrupted oob

David Oberhollenzer (1):
       Release mtd-utils-2.1.5

Enrico Jorns (1):
       libmtd: do not ignore non-zero eraseblock size when MTD_NO_ERASE is set

Frederic Germain (2):
       .gitignore: add new ubiscan utility
       Fix warning about unaligned pointer in jffs2reader

Khem Raj (1):
       tests: Remove unused linux/fs.h header from includes

Michael Walle (1):
       mtd-utils: flash_otp_dump make offset optional

Mike Frysinger (1):
       fix test bashism

Rafał Miłecki (1):
       nandwrite: warn about writing 0xff blocks

Sascha Hauer (1):
       mtd-utils: nanddump: fix writing big images on 32bit machines

liaohua (1):
       nor-utils: fix memory leak

(From OE-Core rev: 7f2503ef132634431b28207c51b3fd18de076eb9)

Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
(cherry picked from commit a3289c988764e5b864873b4adc7656c101a5b9c0)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/mtd/mtd-utils_git.bb

@@ -11,9 +11,9 @@ inherit autotools pkgconfig update-alternatives
 DEPENDS = "zlib e2fsprogs util-linux"
 RDEPENDS:mtd-utils-tests += "bash"
 
-PV = "2.1.4"
+PV = "2.1.5"
 
-SRCREV = "c7f1bfa44a84d02061787e2f6093df5cc40b9f5c"
+SRCREV = "3f3b4cc6c3120107e7aaa21c6415772a255ac49c"
 SRC_URI = "git://git.infradead.org/mtd-utils.git;branch=master \
            file://add-exclusion-to-mkfs-jffs2-git-2.patch \
            "