illumos gate

Build error with gcc 12:

    ../../common/io/vr/vr.c: In function 'vr_bus_config':
    ../../common/io/vr/vr.c:657:33: error: the comparison will always evaluate as 'false' for the address of 'name' will never be NULL [-Werror=address]
      657 |         if (vrp->chip.info.name == NULL) {
          |                                 ^~
    In file included from ../../common/io/vr/vr.c:54:
    ../../common/io/vr/vr.h:355:25: note: 'name' declared here
      355 |         char            name[128];
          |                         ^~~~
    cc1: all warnings being treated as errors

Since the 'name' can not be NULL, we do have few alternate options there, however, the comment does tell us the intent for this if statement and therefore we should check if the 'name' has empty string. Of course, since I do not have this specific hardware, I am in a bit of trouble there about validating this.

Testing done: build/install/boot, but as noted above, no actual hw to test.