audit,module: restore audit logging in load failure case

The move of the module sanity check to earlier skipped the audit logging
call in the case of failure and to a place where the previously used
context is unavailable.

Add an audit logging call for the module loading failure case and get
the module name when possible.

Link: https://issues.redhat.com/browse/RHEL-52839
Fixes: 02da2cbab4 ("module: move check_modinfo() early to early_mod_check()")
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

kernel/audit.h

@@ -200,7 +200,7 @@ struct audit_context {
 			int			argc;
 		} execve;
 		struct {
-			char			*name;
+			const char		*name;
 		} module;
 		struct {
 			struct audit_ntp_data	ntp_data;