hw/rx: Allow execution without either bios or kernel

Users can use -device loader to get an ELF file loaded to
memory, so we don't need to require one of these options.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250215021654.1786679-2-keithp@keithp.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/rx/rx-gdbsim.c

@@ -110,9 +110,6 @@ static void rx_gdbsim_init(MachineState *machine)
     if (!kernel_filename) {
         if (machine->firmware) {
             rom_add_file_fixed(machine->firmware, RX62N_CFLASH_BASE, 0);
-        } else if (!qtest_enabled()) {
-            error_report("No bios or kernel specified");
-            exit(1);
         }
     }