Update compiler-rt with fix for 32bit iOS ARM

TimNN · TimNN · commit 5b1a60062c88 · 2018-03-27T15:32:06.000+02:00
diff --git a/src/libcompiler_builtins b/src/libcompiler_builtins
@@ -1 +1 @@
-Subproject commit 263a703b10351d8930e48045b4fd09768991b867
+Subproject commit 2a2f6d96c8dc578d2474742f14c9bab0b36b0408
