tcg: Fix prototypes for tcg_out_vec_op and tcg_out_op

tcg: Fix prototypes for tcg_out_vec_op and tcg_out_op

There are two different versions of prototype for tcg_out_op and
tcg_out_vec_op functions:

1) using const TCGArg *args and const int *const_args arguments
2) using const TCGArg args[TCG_MAX_OP_ARGS] and const int
   const_args[TCG_MAX_OP_ARGS] aguments.

This duality causes warnings on GCC 11 and prevents build using
--enable-werror.  As second version provides more information,
unify functions prototypes to this variant.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Message-Id: <20210312121418.139093-1-mrezanin@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>