TCG: Fix 32-bit host allocation typo

The second half register of a 64-bit temp on a 32-bit host
was allocated with the wrong base_type.

The base_type of the second half register is never checked,
but for consistency it should be the same as the first half.

Signed-off-by: Richard Henderson <rth@twiddle.net>

tcg/tcg.c

@@ -526,7 +526,7 @@ static inline int tcg_temp_new_internal(TCGType type, int temp_local)
             ts->temp_local = temp_local;
             ts->name = NULL;
             ts++;
-            ts->base_type = TCG_TYPE_I32;
+            ts->base_type = type;
             ts->type = TCG_TYPE_I32;
             ts->temp_allocated = 1;
             ts->temp_local = temp_local;