Fix: ais523 devteam monster name change wasn't complete

The names are also hardcoded in sounds.c so they can say individualized
things, but when I changed the name in the des file, I didn't update it
here.

src/sounds.c

@@ -1118,7 +1118,7 @@ register struct monst *mtmp;
             else if (!strcmpi(MNAME(mtmp), "patr")) {
                 chosenmsg = patrmsgs[rn2(SIZE(patrmsgs))];
             }
-            else if (!strcmpi(MNAME(mtmp), "ais")) {
+            else if (!strcmpi(MNAME(mtmp), "ais523")) {
                 chosenmsg = aismsgs[rn2(SIZE(aismsgs))];
             }
             else if (!strcmpi(MNAME(mtmp), "lorimer")) {