Roll third_party/fp16/src/ 581ac1c79..b3720617f (22 commits)

https://chromium.googlesource.com/external/github.com/Maratyszcza/FP16.git/+log/581ac1c79dd9..b3720617faf1

Created with:
  roll-dep third_party/fp16/src

Change-Id: I10556da796b0f10ea925511bc2ffd76411296b79
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/135510
Auto-Submit: Andy Phan <andyphan@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index e753f00..57ef9eb 100644
--- a/DEPS
+++ b/DEPS
@@ -118,7 +118,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling fp16
   # and whatever else without interference from each other.
-  'fp16_revision': '581ac1c79dd9d9f6f4e8b2934e7a55c7becf0799',
+  'fp16_revision': 'b3720617faf1a4581ed7e6787cc51722ec7751f0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling freetype
   # and whatever else without interference from each other.