[coreboot-gerrit] Change in coreboot[master]: src/driver/wifi: Add _DSM method for DDRRFIM

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Varshit B Pandya, Subrata Banik, Maulik V Vaghela, Paul Menzel, Sugnan Prabhu S, Tim Wawrzynczak.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61020 )

Change subject: src/driver/wifi: Add _DSM method for DDRRFIM
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Patch Set 19: Code-Review+1

(1 comment)

File src/drivers/wifi/generic/acpi.c:

https://review.coreboot.org/c/coreboot/+/61020/comment/1bd5fc21_b192d8d6 
PS19, Line 538: const struct drivers_wifi_generic_config *config = dev->chip_info;
              : 	bool is_cnvi_ddr_rfim_enabled;
              : 
              : 	is_cnvi_ddr_rfim_enabled = config->enable_cnvi_ddr_rfim;
let's at least NULL-check dev here, e.g.

```
bool is_cnvi_ddr_rfim_enabled = false;

dev = dev->link_list->children;
if (dev) {
    const struct drivers_wifi_generic_config *config = dev->chip_info;
    is_cnvi_ddr_rfim_enabled = config->enable_cnvi_ddr_rfim;
}
```