Corrected Lightning Walk requirements (#2984)

* Fixes #2974.
* Corrected SP consumption.
* Corrected spirit sphere consumption.
Thanks to @admkakaroto!

db/pre-re/skill_require_db.txt

@@ -764,7 +764,7 @@
 2332,0,0,150,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0							//SR_RAMPAGEBLASTER
 2333,0,0,80,0,0,0,99,0,0,none,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0								//SR_CRESCENTELBOW
 2334,0,0,40:60:80:100:120,-1:-2:-3:-4:-5,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0	//SR_CURSEDCIRCLE
-2335,0,0,40,-5:-4:-3:-2:-1,0,0,99,0,0,none,0,1:2:3:4:5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0		//SR_LIGHTNINGWALK
+2335,0,0,80:70:60:50:40,-5:-4:-3:-2:-1,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0		//SR_LIGHTNINGWALK
 2336,0,0,10:15:20:25:30,0,0,0,99,0,0,none,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0					//SR_KNUCKLEARROW
 2337,0,0,45,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0								//SR_WINDMILL
 2338,0,0,120,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0							//SR_RAISINGDRAGON

db/re/skill_require_db.txt

@@ -763,7 +763,7 @@
 2332,0,0,150,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0							//SR_RAMPAGEBLASTER
 2333,0,0,80,0,0,0,99,0,0,none,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0								//SR_CRESCENTELBOW
 2334,0,0,40:60:80:100:120,-1:-2:-3:-4:-5,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0	//SR_CURSEDCIRCLE
-2335,0,0,40,-5:-4:-3:-2:-1,0,0,99,0,0,none,0,1:2:3:4:5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0		//SR_LIGHTNINGWALK
+2335,0,0,80:70:60:50:40,-5:-4:-3:-2:-1,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0		//SR_LIGHTNINGWALK
 2336,0,0,10:15:20:25:30,0,0,0,99,0,0,none,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0					//SR_KNUCKLEARROW
 2337,0,0,45,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0								//SR_WINDMILL
 2338,0,0,120,0,0,0,99,0,0,none,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0							//SR_RAISINGDRAGON