[yaml2obj] - An attempt to fix a ppc64be build bot after r364898
[yaml2obj] - An attempt to fix a ppc64be build bot after r364898

I guess the problem is because of endianess of
the bytes tested by "od" tool. I changed the Content
sequence as it does not actually matter.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@364907 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm