gpu: Expand disable_discard_framebuffer from Power VR 540 to 5xx

BUG=488463

Review URL: https://codereview.chromium.org/1133593009

Cr-Commit-Position: refs/heads/master@{#330616}
(cherry picked from commit 7fb5950)

Review URL: https://codereview.chromium.org/1133543006

Cr-Commit-Position: refs/branch-heads/2403@{crosswalk-project#21}
Cr-Branched-From: f54b809-refs/heads/master@{#330231}

gpu/config/gpu_driver_bug_list_json.cc

@@ -19,7 +19,7 @@ const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
 {
   "name": "gpu driver bug list",
   // Please update the version number whenever you change this file.
-  "version": "8.01",
+  "version": "8.03",
   "entries": [
     {
       "id": 1,
@@ -510,13 +510,13 @@ const char kGpuDriverBugListJson[] = LONG_STRING_CONST(
     },
     {
       "id": 42,
-      "cr_bugs": [290876],
+      "cr_bugs": [290876, 488463],
       "description": "Framebuffer discarding causes flickering on older IMG drivers",
       "os": {
         "type": "android"
       },
       "gl_vendor": "Imagination.*",
-      "gl_renderer": "PowerVR SGX 540",
+      "gl_renderer": "PowerVR SGX 5.*",
       "features": [
         "disable_discard_framebuffer"
       ]