mtd-utils: update to 2.1.4

mtd-utils: update to 2.1.4

Changes from 2.1.3 to 2.1.4:

Features:
      - ubiscan debugging and statistics utility

Fixes:
      - Some mtd-tests erroneously using sub-pages instead of the full page size
      - Buffer overrun in fectest
      - Missing jffs2 kernel header in the last release, leading to build
        failures on some systems.

Changes from 2.1.2 to 2.1.3:

Features:
       flashcp: Add new function that copy only different blocks
       flash_erase: Add flash erase chip
       Add flash_otp_erase
       Add an ubifs mount helper
       Add nandflipbits tool

Fixes:
       mkfs.ubifs: Fix runtime assertions when running without crypto
       mtd-utils: Use AC_SYS_LARGEFILE
       Fix test binary installation
       libmtd: avoid divide by zero
       ubihealthd: fix UBIFS build dependency
       mkfs.ubifs: remove OPENSSL_no_config()
       misc-utils: Add fectest to build system
       mkfs.ubifs: Fix build with SELinux
       Fix typos found by Debian's lintian tool
       Fix jffs2 build if zlib or lzo headers are not in default paths

Signed-off-by: Nick Hainke <vincent@systemli.org>