Hdrp/fix camera switcher (#591)

* Fixed a wrong condition in camera switcher, potentially causing out of bound exceptions.

* update changelog.

Author: JulienIgnace-Unity

com.unity.render-pipelines.core/Runtime/Camera/CameraSwitcher.cs

@@ -89,7 +89,7 @@ Camera GetNextCamera()
 
         void SetCameraIndex(int index)
         {
-            if (index > 0 || index < GetCameraCount())
+            if (index > 0 && index < GetCameraCount())
             {
                 m_CurrentCameraIndex = index;
 

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -622,6 +622,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed Wizard check on default volume profile to also check it is not the default one in package.
 - Fix erroneous central depth sampling in TAA.
 - Fixed light layers not correctly disabled when the lightlayers is set to Nothing and Lightlayers isn't enabled in HDRP Asset
+- Fixed a wrong condition in CameraSwitcher, potentially causing out of bound exceptions.
 
 ### Changed
 - Improve MIP selection for decals on Transparents