tcg: Add tcg_gen_bswap_tl alias

The alias is intended to indicate that the bswap is for the
entire target_long.  This should avoid ifdefs on some targets.

Reviewed-by: Frank Chang <frank.chang@sifive.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/tcg/tcg-op.h

@@ -1085,6 +1085,7 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t);
 #define tcg_gen_bswap16_tl tcg_gen_bswap16_i64
 #define tcg_gen_bswap32_tl tcg_gen_bswap32_i64
 #define tcg_gen_bswap64_tl tcg_gen_bswap64_i64
+#define tcg_gen_bswap_tl tcg_gen_bswap64_i64
 #define tcg_gen_concat_tl_i64 tcg_gen_concat32_i64
 #define tcg_gen_extr_i64_tl tcg_gen_extr32_i64
 #define tcg_gen_andc_tl tcg_gen_andc_i64
@@ -1197,6 +1198,7 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t);
 #define tcg_gen_ext32s_tl tcg_gen_mov_i32
 #define tcg_gen_bswap16_tl tcg_gen_bswap16_i32
 #define tcg_gen_bswap32_tl tcg_gen_bswap32_i32
+#define tcg_gen_bswap_tl tcg_gen_bswap32_i32
 #define tcg_gen_concat_tl_i64 tcg_gen_concat_i32_i64
 #define tcg_gen_extr_i64_tl tcg_gen_extr_i64_i32
 #define tcg_gen_andc_tl tcg_gen_andc_i32