Move files common for mysql and mariadb under mysql-common

Because galera library path has to be set in mysql config file,
we create a symlink during install time to make sure that there is
always same path for mysql and mariadb and for all architectures.

Change-Id: Iea3264932ec621d3d7618c5c50cbe47a956fb332

elements/mariadb/install.d/10-mariadb

@@ -34,3 +34,13 @@ register-state-path /var/lib/mysql
 # the first time we boot a particular state partition we rsync this in.
 [ -d /var/log/mysql ] || install -d -o root -g mysql -m 0775 /var/log/mysql
 register-state-path /var/log/mysql
+
+# galera lib path is set in mysql config file, creating symlink
+# /usr/local/mysql/lib/libgalera_smm.so allows us to use same path
+# for mysql and mariadb and for i386/amd64
+[ -e /usr/local/mysql/lib ] || install -m 0755 -o root -g root -d /usr/local/mysql/lib
+if [ -e /usr/lib64/galera/libgalera_smm.so ];then
+  ln -sf /usr/lib64/galera/libgalera_smm.so /usr/local/mysql/lib/libgalera_smm.so
+elif [ -e /usr/lib/galera/libgalera_smm.so ];then
+  ln -sf /usr/lib/galera/libgalera_smm.so /usr/local/mysql/lib/libgalera_smm.so
+fi