Add semantics to apply gpu blakclist to AMD swichable when a discrete/integrated GPU is in use

gpu/config/software_rendering_list_json.cc

Index: gpu/config/software_rendering_list_json.cc
diff --git a/gpu/config/software_rendering_list_json.cc b/gpu/config/software_rendering_list_json.cc
index 36348b57738bcc9ecf8f1b80d88f78bdb79e7975..6e9f79dd5728e67b4ef8ac0060fd12930b467009 100644
--- a/gpu/config/software_rendering_list_json.cc
+++ b/gpu/config/software_rendering_list_json.cc
@@ -18,7 +18,7 @@ const char kSoftwareRenderingListJson[] = LONG_STRING_CONST(
 {
   "name": "software rendering list",
   // Please update the version number whenever you change this file.
-  "version": "8.5",
+  "version": "8.6",
   "entries": [
     {
       "id": 1,
@@ -1092,7 +1092,7 @@ LONG_STRING_CONST(
       "os": {
         "type": "win"
       },
-      "multi_gpu_style": "amd_switchable",
+      "multi_gpu_style": "amd_switchable_discrete",
       "features": [
         "accelerated_video_decode"
       ]