7058ff52 Sun Feb 26 13:11:38 CST 2023 Richard Henderson <richard.henderson@linaro.org> target/ppc: Avoid tcg_const_* in translate.c
All remaining uses are strictly read-only.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>