loader: default to iris for all future PCI IDs

The existing "fallback" code didn't actually do anything, so this
removes it, and instead we just always fallback to `iris` for future
PCI IDs.

Suggested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/intel/dev/gen_device_info.c

@@ -1226,6 +1226,7 @@ gen_get_device_info_from_pci_id(int pci_id,
 #define CHIPSET(id, family, name) \
       case id: *devinfo = gen_device_info_##family; break;
 #include "pci_ids/i965_pci_ids.h"
+#include "pci_ids/iris_pci_ids.h"
    default:
       fprintf(stderr, "Driver does not support the 0x%x PCI ID.\n", pci_id);
       return false;
@@ -1276,6 +1277,7 @@ gen_get_device_name(int devid)
 #undef CHIPSET
 #define CHIPSET(id, family, name) case id: return name;
 #include "pci_ids/i965_pci_ids.h"
+#include "pci_ids/iris_pci_ids.h"
    default:
       return NULL;
    }

src/intel/dev/gen_device_info_test.c

@@ -15,6 +15,7 @@ main(int argc, char *argv[])
 #undef CHIPSET
 #define CHIPSET(id, family, str_name) { .pci_id = id, .name = str_name, },
 #include "pci_ids/i965_pci_ids.h"
+#include "pci_ids/iris_pci_ids.h"
    };
 
    for (uint32_t i = 0; i < ARRAY_SIZE(chipsets); i++) {