mariadb: Update from version 5.5.39 to 5.5.40

* rename mariadb_5.5.39.inc -> mariadb.inc
* add dependency bision-native for mariadb-native
* add revert-fix-for-MDEV-5120.patch to revert an commit for mariadb test suite
  which causes packages mysql-python and modphp fail to build
* add PACKAGECONFIG 'libedit'

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>