tcg-arm: The shift count of op_rotl_i32 is in args[2] not args[1].

It's this that should be subtracted from 0x20 when converting to a right rotate.

Cc: qemu-stable@nongnu.org
Signed-off-by: NHuw Davies <huw@codeweavers.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

tcg/arm/tcg-target.c

@@ -1866,7 +1866,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
                             SHIFT_IMM_ROR((0x20 - args[2]) & 0x1f) :
                             SHIFT_IMM_LSL(0));
         } else {
-            tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_TMP, args[1], 0x20);
+            tcg_out_dat_imm(s, COND_AL, ARITH_RSB, TCG_REG_TMP, args[2], 0x20);
             tcg_out_dat_reg(s, COND_AL, ARITH_MOV, args[0], 0, args[1],
                             SHIFT_REG_ROR(TCG_REG_TMP));
         }