rollback provider dir change

diff --git a/lib/puppet/provider/package/mysql_database.rb b/lib/puppet/provider/mysql_database/mysql.rb
similarity index 100%
rename from lib/puppet/provider/package/mysql_database.rb
rename to lib/puppet/provider/mysql_database/mysql.rb

diff --git a/lib/puppet/provider/package/mysql_grant.rb b/lib/puppet/provider/mysql_grant/mysql.rb
similarity index 100%
rename from lib/puppet/provider/package/mysql_grant.rb
rename to lib/puppet/provider/mysql_grant/mysql.rb

diff --git a/lib/puppet/provider/package/mysql_user.rb b/lib/puppet/provider/mysql_user/mysql.rb
similarity index 100%
rename from lib/puppet/provider/package/mysql_user.rb
rename to lib/puppet/provider/mysql_user/mysql.rb