HDRenderPipeline: Fix PS4 compilation + Fix test scene SSS

- PS4 compiler doesn't support ";;", need to replace with ";"
- Fix missing prefab in test

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

 #else // LAYERED_LIT_SHADER
 
 // Set of users variables
-#define PROP_DECL(type, name) type name, name##0, name##1, name##2, name##3;
+#define PROP_DECL(type, name) type name, name##0, name##1, name##2, name##3
 // sampler are share by texture type inside a layered material but we need to support that a particualr layer have no texture, so we take the first sampler of available texture as the share one
 // mean we must declare all sampler
 #define PROP_DECL_TEX2D(name)\
     TEXTURE2D(MERGE_NAME(name, 2)); \
     SAMPLER2D(MERGE_NAME(MERGE_NAME(sampler, name), 2)); \
     TEXTURE2D(MERGE_NAME(name, 3)); \
-    SAMPLER2D(MERGE_NAME(MERGE_NAME(sampler, name), 3));
+    SAMPLER2D(MERGE_NAME(MERGE_NAME(sampler, name), 3))
 
 // Set of users variables
 PROP_DECL(float4, _BaseColor);

Assets/TestScenes/HDTest/HDRenderLoopTest.unity

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