component/mariadb: use 10.2.5(RC) in mariadb/mariarocks.cfg.

component/mariadb/mariarocks.cfg

-[mariarocks-source]
-recipe = slapos.recipe.build:gitclone
-git-executable = ${git:location}/bin/git
-repository = https://github.com/MariaDB/server.git
-branch = bb-10.2-mariarocks
-
 [mariadb]
-url =
-path = ${mariarocks-source:location}
-patches =
+url = https://downloads.mariadb.com/MariaDB/mariadb-10.2.5/source/mariadb-10.2.5.tar.gz
+md5sum = 16fb01bb375c8d8a91a9ecf491397d51
 pre-configure =
-  ${:clean}
-  ${git:location}/bin/git submodule update --init
   sed -i -e '/(rc == -1 || errno == EINTR)/s/||/\&\&/' libmariadb/plugins/pvio/pvio_socket.c
   sed -i -e 's, rocksdblib, rocksdblib "rt",' storage/rocksdb/CMakeLists.txt
-post-install +=
-  ${:clean}
-clean =
-  ${git:location}/bin/git clean -Xdf
-  ${git:location}/bin/git submodule foreach ${git:location}/bin/git clean -Xdf
-  ${git:location}/bin/git -C libmariadb checkout plugins/pvio/pvio_socket.c
-  ${git:location}/bin/git checkout storage/rocksdb/CMakeLists.txt
 configure-options +=
   -DPLUGIN_DAEMON_EXAMPLE=NO
   -DPLUGIN_EXAMPLE=NO
+  -DPLUGIN_MROONGA=NO
   -DCMAKE_C_COMPILER=${gcc:location}/bin/gcc
   -DCMAKE_CXX_COMPILER=${gcc:location}/bin/g++
   -DCMAKE_INSTALL_RPATH=${gcc:location}/lib:${gcc:location}/lib64:${:CMAKE_INSTALL_RPATH}