Roll SwiftShader 8fb6f6a..be5fe77

https://swiftshader.googlesource.com/SwiftShader.git/+log/8fb6f6a..be5fe77

BUG=chromium:863682

TEST=bots

TBR=kbr@chromium.org

CQ_INCLUDE_TRYBOTS=luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_chromium_cfi_rel_ng;luci.chromium.try:android_optional_gpu_tests_rel

Change-Id: Iaaea854a33e6367f192c0c554789994d681a8f2a
Reviewed-on: https://chromium-review.googlesource.com/1145222Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Nicolas Capens <capn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577484}

DEPS

@@ -125,7 +125,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.
-  'swiftshader_revision': '8fb6f6a129f5ed809db7ba3a8bc862dd5e7bc75d',
+  'swiftshader_revision': 'be5fe7797f1e1dbf96f3f337604a4711e871a30a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling PDFium
   # and whatever else without interference from each other.