Reverted use of CBUFFER_ macros, as it was breaking the shaders on Vulkan

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_cs/sgsr2_convert.compute

@@ -15,7 +15,8 @@ TYPED_TEXTURE2D_X(float2, InputVelocity)            : register(t2);
 RW_TEXTURE2D_X(half4, MotionDepthClipAlphaBuffer)   : register(u0);
 RW_TEXTURE2D_X(uint, YCoCgColor)                    : register(u1);
 
-CBUFFER_START(Params)
+cbuffer Params : register(b0)
+{
     uint2                renderSize;
     uint2                displaySize;
     float2               renderSizeRcp;
@@ -29,7 +30,7 @@ CBUFFER_START(Params)
     float                MinLerpContribution;
     uint                 bSameCamera;
     uint                 reset;
-CBUFFER_END
+};
 
 [numthreads(8, 8, 1)]
 void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_cs/sgsr2_upscale.compute

@@ -36,7 +36,8 @@ TYPED_TEXTURE2D_X(uint, YCoCgColor)         : register(t2);
 RW_TEXTURE2D_X(half4, SceneColorOutput)     : register(u0);
 RW_TEXTURE2D_X(half4, HistoryOutput)        : register(u1);
 
-CBUFFER_START(Params)
+cbuffer Params : register(b0)
+{
     uint2                renderSize;
     uint2                displaySize;
     float2               renderSizeRcp;
@@ -50,7 +51,7 @@ CBUFFER_START(Params)
     float                MinLerpContribution;
     uint                 bSameCamera;
     uint                 reset;
-CBUFFER_END
+};
 
 [numthreads(8, 8, 1)]
 void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/3_pass_cs/sgsr2_activate.compute

@@ -34,7 +34,8 @@ TYPED_TEXTURE2D_X(uint, YCoCgColor)                 : register(t2);
 RW_TEXTURE2D_X(half4, MotionDepthClipAlphaBuffer)   : register(u0);
 RW_TEXTURE2D_X(uint, LumaHistory)                   : register(u1);
 
-CBUFFER_START(Params)
+cbuffer Params : register(b0)
+{
     uint2                renderSize;
     uint2                displaySize;
     float2               ViewportSizeInverse;
@@ -48,7 +49,7 @@ CBUFFER_START(Params)
     float                MinLerpContribution;
     uint                 bSameCamera;
     uint                 reset;
-CBUFFER_END
+};
 
 [numthreads(8, 8, 1)]
 void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/3_pass_cs/sgsr2_convert.compute

@@ -16,7 +16,8 @@ TYPED_TEXTURE2D_X(float2, InputVelocity)        : register(t3);
 RW_TEXTURE2D_X(half4, MotionDepthAlphaBuffer)   : register(u0);
 RW_TEXTURE2D_X(uint, YCoCgColor)                : register(u1);
 
-CBUFFER_START(Params)
+cbuffer Params : register(b0)
+{
     uint2                renderSize;
     uint2                displaySize;
     float2               ViewportSizeInverse;
@@ -30,7 +31,7 @@ CBUFFER_START(Params)
     float                MinLerpContribution;
     uint                 bSameCamera;
     uint                 reset;
-CBUFFER_END
+};
 
 [numthreads(8, 8, 1)]
 void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/3_pass_cs/sgsr2_upscale.compute

@@ -36,7 +36,8 @@ TYPED_TEXTURE2D_X(uint, YCoCgColor)         : register(t2);
 RW_TEXTURE2D_X(half4, SceneColorOutput)     : register(u0);
 RW_TEXTURE2D_X(half4, HistoryOutput)        : register(u1);
 
-CBUFFER_START(Params)
+cbuffer Params : register(b0)
+{
     uint2                renderSize;
     uint2                displaySize;
     float2               renderSizeRcp;
@@ -50,7 +51,7 @@ CBUFFER_START(Params)
     float                MinLerpContribution;
     uint                 bSameCamera;
     uint                 reset;
-CBUFFER_END
+};
 
 [numthreads(8, 8, 1)]
 void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)