Move free-zext.ll to llvm/test/Transforms/CodeGenPrepare/AArch64/

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253730 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/CodeGenPrepare/free-zext.ll b/test/Transforms/CodeGenPrepare/AArch64/free-zext.ll
similarity index 100%
rename from test/Transforms/CodeGenPrepare/free-zext.ll
rename to test/Transforms/CodeGenPrepare/AArch64/free-zext.ll