Fixed Water Evasion and Freezing Spear combo (#3618)

* Fixes #3615.
* Freezing Spear damage should increase when the caster is standing in Water Evasion.
Thanks to @Balferian!

src/map/battle.cpp

@@ -5922,6 +5922,8 @@ struct Damage battle_calc_magic_attack(struct block_list *src,struct block_list
 					case NJ_HYOUSENSOU:
 #ifdef RENEWAL
 						skillratio -= 30;
+						if (sc && sc->data[SC_SUITON])
+							skillratio += 2 * skill_lv;
 #endif
 						if(sd && sd->spiritcharm_type == CHARM_TYPE_WATER && sd->spiritcharm > 0)
 							skillratio += 5 * sd->spiritcharm;