Roll src/third_party/lss/ 8048ece6c..726d71ec0 (1 commit)

https://chromium.googlesource.com/linux-syscall-support.git/+log/8048ece6c16c..726d71ec08d1

$ git log 8048ece6c..726d71ec0 --date=short --no-merges --format='%ad %ae %s'
2019-11-13 jperaza Add sigtimedwait and sigprocmask wrappers

Created with:
  roll-dep src/third_party/lss

Change-Id: I4dbbeaf72f432caab2315779e0305a60b78a1ba3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1915182
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Auto-Submit: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715158}

DEPS

@@ -215,7 +215,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling lss
   # and whatever else without interference from each other.
-  'lss_revision': '8048ece6c16c91acfe0d36d1d3cc0890ab6e945c',
+  'lss_revision': '726d71ec08d15493b94eff456bc31faecf0a5902',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling NaCl
   # and whatever else without interference from each other.