Boost HP of some golems

Idea from SporkHack by Derek Ray, but values are different.

src/makemon.c

@@ -1991,19 +1991,19 @@ golemhp(int type)
     case PM_LEATHER_GOLEM:
         return 40;
     case PM_GOLD_GOLEM:
-        return 40;
+        return 60;
     case PM_WOOD_GOLEM:
         return 50;
     case PM_FLESH_GOLEM:
         return 40;
     case PM_CLAY_GOLEM:
-        return 50;
+        return 70;
     case PM_STONE_GOLEM:
-        return 60;
+        return 100;
     case PM_GLASS_GOLEM:
-        return 60;
-    case PM_IRON_GOLEM:
         return 80;
+    case PM_IRON_GOLEM:
+        return 120;
     default:
         return 0;
     }