Pick encoding for database in server.databases.sls

The endcoding for database wasn't picked if craete it via
mysql.server.database since 'character_set' option is not
passed.
This patch ensures that we pass 'character_set' option.

Change-Id: I7e0f2a9ea3f0d7e3642e6ff6616e8ef4d3ce6b0e
1 file changed