[X86] Fix the pattern changes from r356121 so that the ROR*r1/ROR*m1 pattern use the rotr opcode.

These instructions used to use rotl with a bitwidth-1 immediate. I changed the immediate to 1,
but failed to change the opcode.

Thankfully this seems to have not caused a functional issue because we now had two rotl by 1 patterns,
but the correct ones were earlier and took priority. So we just missed some optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356164 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed