target/riscv: rvv: Check single width operator for vfncvt.rod.f.f.w

The opfv_narrow_check needs to check the single width float operator by
require_rvf.

Signed-off-by: Max Chou <[email protected]>
Reviewed-by: Daniel Henrique Barboza <[email protected]>
Cc: qemu-stable <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Alistair Francis <[email protected]>
(cherry picked from commit 692f33a)
Signed-off-by: Michael Tokarev <[email protected]>

Author: rnax

target/riscv/insn_trans/trans_rvv.c.inc

@@ -2817,6 +2817,7 @@ static bool opffv_narrow_check(DisasContext *s, arg_rmr *a)
 static bool opffv_rod_narrow_check(DisasContext *s, arg_rmr *a)
 {
     return opfv_narrow_check(s, a) &&
+           require_rvf(s) &&
            require_scale_rvf(s) &&
            (s->sew != MO_8);
 }