isdn: hisax: Fix typo 'HISAX_DE_AOC'

That should probably be 'CONFIG_DE_AOC'.

Signed-off-by: Paul Bolle <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/isdn/hisax/l3dss1.c

···
 			         { l3dss1_dummy_invoke(st, cr, id, ident, p, nlen);
                                    return;
                                  } 
-#ifdef HISAX_DE_AOC
+#ifdef CONFIG_DE_AOC
 			{
 
 #define FOO1(s,a,b) \
···
 #undef FOO1
 
 			}
-#else  /* not HISAX_DE_AOC */
+#else  /* not CONFIG_DE_AOC */
                         l3_debug(st, "invoke break");
-#endif /* not HISAX_DE_AOC */
+#endif /* not CONFIG_DE_AOC */
 			break;
 		case 2:	/* return result */
 			 /* if no process available handle separately */