Add locations configuration for flyway db init (default still db/migration) (#2381)

Signed-off-by: Avgustin Marinov <Avgustin.Marinov@bosch.com>

hawkbit-repository/hawkbit-repository-jpa-init/src/main/java/org/eclipse/hawkbit/repository/jpa/init/HawkbitFlywayDbInit.java

@@ -50,9 +50,10 @@ public class HawkbitFlywayDbInit {
     public static void main(final String[] args) {
         final Flyway flyway = Flyway.configure()
                 .dataSource(URL, USER, PASSWORD)
+                .locations(prop("locations", "db/migration").split(","))
+                .sqlMigrationSuffixes(prop("sql-migration-suffixes", suffix(URL)) + ".sql")
                 .cleanDisabled(true)
                 .table(prop("table", "schema_version"))
-                .sqlMigrationSuffixes(prop("sql-migration-suffixes", suffix(URL)) + ".sql")
                 .validateOnMigrate(true)
                 .envVars()
                 .load();