a few more coordxy inconsistencies

src/dogmove.c

@@ -381,7 +381,8 @@ dog_hunger(struct monst *mtmp, struct edog *edog)
 static int
 dog_invent(struct monst *mtmp, struct edog *edog, int udist)
 {
-    int omx, omy, carryamt = 0;
+    coordxy omx, omy;
+    int carryamt = 0;
     struct obj *obj, *otmp;
 
     if (helpless(mtmp))

src/steed.c

@@ -833,7 +833,7 @@ stucksteed(boolean checkfeeding)
 }
 
 void
-place_monster(struct monst* mon, int x, int y)
+place_monster(struct monst* mon, coordxy x, coordxy y)
 {
     struct monst *othermon;
     const char *monnm, *othnm;

src/track.c

@@ -31,7 +31,7 @@ settrack(void)
 }
 
 coord *
-gettrack(register int x, register int y)
+gettrack(coordxy x, coordxy y)
 {
     register int cnt, ndist;
     register coord *tc;