Roll SwiftShader from 5830d745b1b2 to df5dee645ab5 (4 revisions)

https://swiftshader.googlesource.com/SwiftShader.git/+log/5830d745b1b2..df5dee645ab5

2021-01-31 liyl@google.com Allow sampling usage when querying linear image format properties.
2021-01-30 capn@google.com Pool Subzero constant data
2021-01-30 capn@google.com Finalize Reactor Function creation at Routine acquisition
2021-01-29 amaiorano@google.com Fix Reactor memory leaks

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC jmadill@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Bug: angleproject:5377
Tbr: jmadill@google.com
Change-Id: Ifa400697c8afdc49d133a3bc7d1639355698678c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2662689
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -197,7 +197,7 @@ deps = {
   },
 
   'third_party/SwiftShader': {
-    'url': '{swiftshader_git}/SwiftShader@5830d745b1b23de124f043b0018d74be3b2b5a04',
+    'url': '{swiftshader_git}/SwiftShader@df5dee645ab52a311b9ab1fc114e480c00c3ac99',
     'condition': 'not build_with_chromium',
   },