Updated changelog and fixed comment.

com.unity.render-pipelines.lightweight/CHANGELOG.md

 - pipeline now uses XRSEttings.eyeTextureResolutionScale as renderScale when in XR 
 
 ### Changed
-- Reduced by 25% frame time in Mali Utgard arch in Overdraw benchmark scene by removing indexing in shadow code and avoiding division for orthographic projection.
+- Optimized shadow rendering in Mali Utgard arch by removing indexing and avoid division on orthographic projections. Frame time reduce 25% on Overdraw benchmark.
+- Removed 7x7 tent filtering when using cascades.
 - Screenspace shadow resolve is not only done when rendering shadow cascades
 
 ### Fixed

com.unity.render-pipelines.lightweight/LWRP/ShaderLibrary/Shadows.hlsl

 
 real SampleShadowmap(float4 shadowCoord, TEXTURE2D_SHADOW_ARGS(ShadowMap, sampler_ShadowMap), ShadowSamplingData samplingData, half shadowStrength, bool isPerspectiveProjection = true)
 {
-    // Compiler will optimize this branch away as long as isPerspectiveProjection is known at runtime
+    // Compiler will optimize this branch away as long as isPerspectiveProjection is known at compile time
     if (isPerspectiveProjection)
         shadowCoord.xyz /= shadowCoord.w;