tcg/ppc: Fix typo

Signed-off-by: malc <av1474@comtv.ru>
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index 31101c8..96cc461 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -1575,7 +1575,7 @@
     case INDEX_op_rotr_i32:
         if (const_args[2]) {
             if (!args[2]) {
-                tcg_out_mov (s, args[0], args[2]);
+                tcg_out_mov (s, args[0], args[1]);
             }
             else {
                 tcg_out32 (s, RLWINM