Fix PS4 compile issues with BFE

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Lit.hlsl

     bsdfData.thickness         = _ThicknessRemaps[subsurfaceProfile][0] +
                                  _ThicknessRemaps[subsurfaceProfile][1] * thickness;
 
-    uint transmissionMode = BitFieldExtract(_TransmissionFlags, 2, 2 * subsurfaceProfile);
+    uint transmissionMode = BitFieldExtract(_TransmissionFlags, 2u, 2u * subsurfaceProfile);
 
     bsdfData.enableTransmission = transmissionMode != SSS_TRSM_MODE_NONE;
     bsdfData.useThinObjectMode  = transmissionMode == SSS_TRSM_MODE_THIN;

Assets/ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/LitData.hlsl

     // Done one time for all layered - cumulate with spec occ alpha for now
     surfaceData.specularOcclusion *= GetHorizonOcclusion(V, surfaceData.normalWS, interpolatedVertexNormal, _HorizonFade);
 
-    uint transmissionMode = BitFieldExtract(_TransmissionFlags, 2, 2 * surfaceData.subsurfaceProfile);
+    uint transmissionMode = BitFieldExtract(_TransmissionFlags, 2u, 2u * surfaceData.subsurfaceProfile);
 
     if (transmissionMode != SSS_TRSM_MODE_THIN)
     {

Assets/ScriptableRenderPipeline/ShaderLibrary/Common.hlsl

 
 bool IsBitSet(uint data, uint bitPos)
 {
-    return BitFieldExtract(data, 1, bitPos) != 0;
+    return BitFieldExtract(data, 1u, bitPos) != 0;
 }
 
 #ifndef INTRINSIC_CLAMP

Assets/ScriptableRenderPipeline/ShaderLibrary/Packing.hlsl

 // Packs 8 lowermost bits of a [0..65535] integer into a [0..1] float.
 float PackShortLo(uint i)
 {
-    uint lo = BitFieldExtract(i, 8, 0);
+    uint lo = BitFieldExtract(i, 8u, 0u);
     return PackInt(lo, 8);
 }
 
-    uint hi = BitFieldExtract(i, 8, 8);
+    uint hi = BitFieldExtract(i, 8u, 8u);
     return PackInt(hi, 8);
 }