[roll] Roll third_party/mesa 8144421..4c88eb2 (2 commits)

4c88eb2:https://fuchsia-review.googlesource.com/c/third_party/mesa/+/572627 Add -Werror=int-conversion
f4da87d:https://fuchsia-review.googlesource.com/c/third_party/mesa/+/572625 Add -Werror=missing-prototypes
GitOrigin-RevId: 42a94e86ed1423e21d4404839c349ec3c867ed5b
Change-Id: I6f7b8ad5c3f306a7acf452cc50987e3a267e0148
diff --git a/third_party/flower b/third_party/flower
index cfeb27f..3a7683e 100644
--- a/third_party/flower
+++ b/third_party/flower
@@ -245,7 +245,7 @@
     <project name="third_party/mesa"
              path="third_party/mesa"
              remote="https://fuchsia.googlesource.com/third_party/mesa"
-             revision="81444218cadddcb9924cdacaff46d8c7203ea337"
+             revision="4c88eb20e7142eb564a77e45119fa01876dab8c0"
              gerrithost="https://fuchsia-review.googlesource.com"/>
     <project name="third_party/github.com/kmackay/micro-ecc"
              path="third_party/micro-ecc"