[PowerPC] Fix condition for 64-bit rotate when replacing r+r instr with r+i

This patch fixes https://bugs.llvm.org/show_bug.cgi?id=37039
The condition only covers one of the two 64-bit rotate instructions. This just
adds the second (RLDICLo).

Patch by Josh Stone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329852 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed