[2023.2][URP] Fixing an issue with Alpha clipping and Depth Priming (…

…UUM-64447)

Fixes UUM-64447.
The issue was that the `_ALPHATEST_ON` keyword needs to be available in both vertex and fragment shaders in order to check if UV (TEXCOORD1) is needed or not.

Packages/com.unity.render-pipelines.universal/Shaders/ComplexLit.shader

@@ -377,7 +377,7 @@ Shader "Universal Render Pipeline/Complex Lit"
             #pragma shader_feature_local _NORMALMAP
             #pragma shader_feature_local _PARALLAXMAP
             #pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
-            #pragma shader_feature_local_fragment _ALPHATEST_ON
+            #pragma shader_feature_local _ALPHATEST_ON
             #pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
 
             // -------------------------------------

Packages/com.unity.render-pipelines.universal/Shaders/Lit.shader

@@ -374,7 +374,7 @@ Shader "Universal Render Pipeline/Lit"
             #pragma shader_feature_local _NORMALMAP
             #pragma shader_feature_local _PARALLAXMAP
             #pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
-            #pragma shader_feature_local_fragment _ALPHATEST_ON
+            #pragma shader_feature_local _ALPHATEST_ON
             #pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
 
             // -------------------------------------

Packages/com.unity.render-pipelines.universal/Shaders/SimpleLit.shader

@@ -332,7 +332,7 @@ Shader "Universal Render Pipeline/Simple Lit"
             // -------------------------------------
             // Material Keywords
             #pragma shader_feature_local _NORMALMAP
-            #pragma shader_feature_local_fragment _ALPHATEST_ON
+            #pragma shader_feature_local _ALPHATEST_ON
             #pragma shader_feature_local_fragment _GLOSSINESS_FROM_BASE_ALPHA
 
             // -------------------------------------