Make regkey OverrideCsTileLayout Integer

there're 3 enum associated with the regkey so using bool is incorrect

Author: elvinw-intel

IGC/Compiler/CISACodeGen/CSWalkOrder.cpp

@@ -188,7 +188,7 @@ void IGC::overrideWalkOrderKeysInPass(bool is_pow2_x, bool is_pow2_y, bool is_po
   }
 
   if (IGC_IS_FLAG_ENABLED(OverrideCsTileLayoutEnable)) {
-    threadIDLayout = (ThreadIDLayout)IGC_IS_FLAG_ENABLED(OverrideCsTileLayout);
+    threadIDLayout = (ThreadIDLayout)IGC_GET_FLAG_VALUE(OverrideCsTileLayout);
   }
 
   const IGC::TriboolFlag overrideHWGenerateLID = static_cast<TriboolFlag>(IGC_GET_FLAG_VALUE(OverrideHWGenerateLID));

IGC/common/igc_flags.h

@@ -1670,7 +1670,7 @@ DECLARE_IGC_REGKEY(DWORD, EnableScalarPipe, 0,
 DECLARE_IGC_REGKEY(bool, OverrideCsWalkOrderEnable, false, "Enable overriding compute walker walk order", true)
 DECLARE_IGC_REGKEY(int, OverrideCsWalkOrder, 0, "Override compute walker walk order", true)
 DECLARE_IGC_REGKEY(bool, OverrideCsTileLayoutEnable, false, "Enable overriding compute walker tile layout", true)
-DECLARE_IGC_REGKEY(bool, OverrideCsTileLayout, 0, "Override compute walker tile layout. False is linear. True is TileY",
+DECLARE_IGC_REGKEY(int, OverrideCsTileLayout, 0, "Override compute walker tile layout enum class ThreadIDLayout",
                    true)
 DECLARE_IGC_REGKEY_ENUM(OverrideHWGenerateLID, -1,
                         "Override HW Generate Local ID setting"