[PowerPC] Move test to correct location.

Test was added in r326906 to an incorrect location.
Moving the test to PPC CodeGen directory as the test is PPC specific.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@326923 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed