make: Fix missing arguments issue.
make: Fix missing arguments issue.

Fixes;
```
AttributeError: 'Namespace' object has no attribute 'integrated_rom_size'
```

mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware,mithro/HDMI2USB-litex-firmware