[roll] Roll fuchsia [roll] Roll llvm-project/libc 38ca195..5559275 (2 commits)

5559275:https://llvm.googlesource.com/llvm-project/libc/+/5559275ead05075d1f2b47bdbd0532acf65a63ff [libc] Introduce a typed syscall wrapper and use it in mmap (#197459)
4531dc5:https://llvm.googlesource.com/llvm-project/libc/+/4531dc57134f96233343b6f2fa8cf83733a398e2 [libc][math] Fix pow() subnormal base exponent computation (#198134)

Original-Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1616169
Original-Original-Revision: ed4c9125ee1442be99e4ba88eb48e7c49e67f3bf
GitOrigin-RevId: 1aae9fbe3b1931e57549299af82ca4ae54a99b91
Change-Id: Ia97c0d6226ac85ecf539085eebff6d58791b7dce
Reviewed-on: https://fuchsia-review.googlesource.com/c/integration/+/1616291
Cr-Commit-Position: refs/heads/main@{#192890}
diff --git a/stem b/stem
index 00d82e5..5fe13d8 100644
--- a/stem
+++ b/stem
@@ -8,6 +8,6 @@
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             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="7070ae04595b9eee17c1c4b9daa72aec01bd1ef6"/>
+            revision="ed4c9125ee1442be99e4ba88eb48e7c49e67f3bf"/>
   </imports>
 </manifest>