mysql_fix_privilege_tables_sql.c should be updated by 'make' if sys_schema/* files changes

cmake will not generate scripts/mysql_sys_schema.sql or mysql_fix_privilege_tables.sql if sys_schema/before_setup.sql

This caused some failures in one environment that I am working on.
(Basically I got broken binaries that are not usable for upgrade)
Could you please fix that mysql_fix_privilege_tables.sql is updated if any sql files in script/sys_schema is changed.

Please ensure that the following will work:
cd scripts
rm mysql_sys_schema.sql
make
Now I get the error:
make[2]: *** No rule to make target `scripts/mysql_sys_schema.sql', needed by `scripts/mysql_fix_privilege_tables_sql.c'.