Reland: cros: Enable partial swap on Mali

Originally this was reverted since crrev.com/c/1685909 needed to be
reverted. crrev.com/c/1685909 now relanded.

After crrev.com/c/1685909 we won't be reading from a buffer
while scanning it out. We can re-enable partial swap on Mali.

Bug: 457511
Change-Id: I6b41161925d0d4bb65eb19250ad5747af5493184
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1830084Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Andres Calderon Jaramillo <andrescj@chromium.org>
Commit-Queue: Daniele Castagna <dcastagna@chromium.org>
Cr-Commit-Position: refs/heads/master@{#702193}

gpu/config/gpu_driver_bug_list.json

@@ -807,19 +807,6 @@
         "disable_d3d11"
       ]
     },
-    {
-      "id": 101,
-      "description": "The Mali-Txxx driver hangs when reading from currently displayed buffer",
-      "cr_bugs": [457511],
-      "os": {
-        "type": "chromeos"
-      },
-      "gl_vendor": "ARM.*",
-      "gl_renderer": "Mali-T.*",
-      "features": [
-        "disable_non_empty_post_sub_buffers_for_onscreen_surfaces"
-      ]
-    },
     {
       "id": 102,
       "description": "Adreno 420 driver loses FBO attachment contents on bound FBO deletion",