mtd-utils: Update to version 2.1.2

The release notes says this:
As already said, the changes since 2.1.1 are primarily bug fixes, addressing
compiler warnings and issues reported by diagnostic tools, but also build
failures for some configurations.
https://lists.infradead.org/pipermail/linux-mtd/2020-July/081299.html

The size of the ubi-utils ipk increases on mips BE by 0.2%
old:
ubi-utils_2.1.1-1_mips_24kc.ipk:	70992
new:
ubi-utils_2.1.2-1_mips_24kc.ipk:	71109

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/utils/mtd-utils/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mtd-utils
-PKG_VERSION:=2.1.1
+PKG_VERSION:=2.1.2
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=ftp://ftp.infradead.org/pub/mtd-utils/
-PKG_HASH:=8d15e8b70f036d6af1a66011f8ca0e048e9675fa7983d33bea92c24313a232d2
+PKG_HASH:=8ad4c5f34716d40646aa28724a2f5616d325a6f119254f914e26976f1f76e9d6
 
 PKG_INSTALL:=1
 PKG_FIXUP:=autoreconf

package/utils/mtd-utils/patches/130-lzma_jffs2.patch

@@ -5015,7 +5015,7 @@
 +}
 --- a/jffsX-utils/mkfs.jffs2.c
 +++ b/jffsX-utils/mkfs.jffs2.c
-@@ -1666,11 +1666,11 @@ int main(int argc, char **argv)
+@@ -1667,11 +1667,11 @@ int main(int argc, char **argv)
  						  }
  						  erase_block_size *= units;