Fix se linux policy gen

[nitai-nahaliel]

When i followed the selinux policy configuration procedure in the documentaion i encountered an error:

# fgrep "mysqld" /var/log/audit/audit.log | audit2allow -m MySQL_galera -o galera.te
# checkmodule -M -m galera.te -o galera.mod
checkmodule: loading policy configuration from galera.te
checkmodule: module name Mysql_galera is different than the output base filename

The problem (according to what i found) is that the module name (MySQL_galera) is different than the output file name (galera.mod), so i changed the module name to 'galera' :

# fgrep "mysqld" /var/log/audit/audit.log | audit2allow -m galera -o galera.te
# checkmodule -M -m galera.te -o galera.mod
checkmodule: loading policy configuration from galera.te
checkmodule: policy configuration loaded
checkmodule: writing binary representation (version 17) to galera.mod

It is also possible to change the file name in the checkmodule command instead (to 'MySQL_galera.mod').

Also fixed a typo ('mysql' -> 'mysqld') in the final command (to return selinux enforcement on mysqld):
from -
# semanage permissive -d mysql_t
to -
# semanage permissive -d mysqld_t