[yaml2elf] - An attemp to fix s390x BB after r353607.

s390x is big-endian and seems r353607 had an issue with endianess,
Bot was unhappy:
http://lab.llvm.org:8011/builders/clang-s390x-linux-lnt/builds/11168/steps/ninja%20check%201/logs/stdio

This should fix it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353613 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/yaml2obj/yaml2elf.cpp b/tools/yaml2obj/yaml2elf.cpp
index 4e3a1d7..50644a9 100644
--- a/tools/yaml2obj/yaml2elf.cpp
+++ b/tools/yaml2obj/yaml2elf.cpp
@@ -594,10 +594,10 @@
 
   auto &OS = CBA.getOSAndAlignedOffset(SHeader.sh_offset, SHeader.sh_addralign);
   for (const ELFYAML::DynamicEntry &DE : Section.Entries) {
-    uintX_t Tag = DE.Tag;
-    OS.write((const char *)&Tag, sizeof(uintX_t));
-    uintX_t Val = DE.Val;
-    OS.write((const char *)&Val, sizeof(uintX_t));
+    ELFT::Xword Tag = (ELFT::Xword)DE.Tag;
+    OS.write((const char *)&Tag, sizeof(ELFT::Xword));
+    ELFT::Xword Val = (ELFT::Xword)DE.Val;
+    OS.write((const char *)&Val, sizeof(ELFT::Xword));
   }
 }