semihosting/arm-compat: Clean up local variable shadowing

semihosting/arm-compat: Clean up local variable shadowing

Fix:

  semihosting/arm-compat-semi.c: In function ‘do_common_semihosting’:
  semihosting/arm-compat-semi.c:379:13: warning: declaration of ‘ret’ shadows a previous local [-Wshadow=local]
    379 |         int ret, err = 0;
        |             ^~~
  semihosting/arm-compat-semi.c:370:14: note: shadowed declaration is here
    370 |     uint32_t ret;
        |              ^~~
  semihosting/arm-compat-semi.c:682:27: warning: declaration of ‘ret’ shadows a previous local [-Wshadow=local]
    682 |                 abi_ulong ret;
        |                           ^~~
  semihosting/arm-compat-semi.c:370:9: note: shadowed declaration is here
    370 |     int ret;
        |         ^~~

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231004120019.93101-14-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>