semihosting: Pass CPUState to qemu_semihosting_console_inc

We don't need CPUArchState, and we do want the CPUState of the
thread performing the operation -- use this instead of current_cpu.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

semihosting/arm-compat-semi.c

@@ -428,7 +428,7 @@ void do_common_semihosting(CPUState *cs)
         break;
 
     case TARGET_SYS_READC:
-        ret = qemu_semihosting_console_inc(env);
+        ret = qemu_semihosting_console_inc(cs);
         common_semi_set_ret(cs, ret);
         break;