target/arm: Check for dp support for dp VFM, not sp

In commit 1120827f we accidentally put the
"UNDEF unless FPU has double-precision support" check in
the single-precision VFM function. Put it in the dp
function where it belongs.

Fixes: 1120827fSigned-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Message-id: 20190617160130.3207-1-peter.maydell@linaro.org

target/arm/translate-vfp.inc.c

@@ -1771,10 +1771,6 @@ static bool trans_VFM_sp(DisasContext *s, arg_VFM_sp *a)
         return false;
     }
 
-    if (!dc_isar_feature(aa32_fpdp, s)) {
-        return false;
-    }
-
     if (!vfp_access_check(s)) {
         return true;
     }
@@ -1838,6 +1834,10 @@ static bool trans_VFM_dp(DisasContext *s, arg_VFM_dp *a)
         return false;
     }
 
+    if (!dc_isar_feature(aa32_fpdp, s)) {
+        return false;
+    }
+
     if (!vfp_access_check(s)) {
         return true;
     }