Fixed tests for scene 15 and 17

Tests/GraphicsTests/RenderPipeline/LightweightPipeline/Scenes/015_CameraMulti_FPSCam.unity

   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.44951814, g: 0.4965123, b: 0.5591539, a: 1}
+  m_IndirectSpecularColor: {r: 0.18230191, g: 0.22486998, b: 0.28911608, a: 1}
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
   m_OcclusionCulling: 1
   m_StereoConvergence: 10
   m_StereoSeparation: 0.022
-  m_StereoMirrorMode: 0
 --- !u!1 &402303141
 GameObject:
   m_ObjectHideFlags: 0
   m_BackGroundColor: {r: 0.19215687, g: 0.3019608, b: 0.4745098, a: 0}
   m_NormalizedViewPortRect:
     serializedVersion: 2
-    x: 0.1
+    x: 0
     y: 0
     width: 1
     height: 1
   m_OcclusionCulling: 1
   m_StereoConvergence: 10
   m_StereoSeparation: 0.022
-  m_StereoMirrorMode: 0
 --- !u!1 &1189044691
 GameObject:
   m_ObjectHideFlags: 0

Tests/GraphicsTests/RenderPipeline/LightweightPipeline/Scenes/017_Lighting_Scene_DirectionalBaked.unity

   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.18357287, g: 0.22910622, b: 0.3055507, a: 1}
+  m_IndirectSpecularColor: {r: 0.18355957, g: 0.22909229, b: 0.30554274, a: 1}
-  m_GIWorkflowMode: 1
+  m_GIWorkflowMode: 0
   m_GISettings:
     serializedVersion: 2
     m_BounceScale: 1
   renderPipeline: {fileID: 11400000, guid: e6987eea1dd29074597d54ed91a54a26, type: 2}
   cameraToUse: {fileID: 64132551}
   hdr: 0
+  msaaSamples: 1
   width: 1280
   height: 720
 --- !u!20 &64132551
   m_OcclusionCulling: 1
   m_StereoConvergence: 10
   m_StereoSeparation: 0.022
-  m_StereoMirrorMode: 0
 --- !u!4 &64132552
 Transform:
   m_ObjectHideFlags: 0