Update prebuilt Clang to r365631c1 from Android.

The version we had was segfaulting.

Bug: 132420445
Change-Id: Icb45a6fe0b4e2166f7895e669df1157cec9fb4e0
diff --git a/linux-x64/clang/include/llvm/BinaryFormat/COFF.h b/linux-x64/clang/include/llvm/BinaryFormat/COFF.h
index e0543de..0fe38a4 100644
--- a/linux-x64/clang/include/llvm/BinaryFormat/COFF.h
+++ b/linux-x64/clang/include/llvm/BinaryFormat/COFF.h
@@ -402,7 +402,7 @@
   IMAGE_REL_ARM64_REL32 = 0x0011,
 };
 
-enum COMDATType : unsigned {
+enum COMDATType : uint8_t {
   IMAGE_COMDAT_SELECT_NODUPLICATES = 1,
   IMAGE_COMDAT_SELECT_ANY,
   IMAGE_COMDAT_SELECT_SAME_SIZE,