Core/Scripting: More updates for BRS instance. Added missing scripts for urok and gizrul.

src/server/game/Scripting/ScriptLoader.cpp

@@ -125,6 +125,8 @@ void AddSC_boss_quatermasterzigris();
 void AddSC_boss_pyroguard_emberseer();
 void AddSC_boss_gyth();
 void AddSC_boss_rend_blackhand();
+void AddSC_boss_gizrul_the_slavener();
+void AddSC_boss_urok_doomhowl();
 void AddSC_instance_blackrock_spire();
 void AddSC_boss_razorgore();                 //Blackwing lair
 void AddSC_boss_vaelastrasz();
@@ -767,6 +769,8 @@ void AddEasternKingdomsScripts()
     AddSC_boss_pyroguard_emberseer();
     AddSC_boss_gyth();
     AddSC_boss_rend_blackhand();
+    AddSC_boss_gizrul_the_slavener();
+    AddSC_boss_urok_doomhowl();
     AddSC_instance_blackrock_spire();
     AddSC_boss_razorgore();                 //Blackwing lair
     AddSC_boss_vaelastrasz();