Snippets for xdrv:fbdev 0.5.1 from Nix aarch64-linux

Sourced from https://hydra.nixos.org/log/d78xpazbh40ahdayj4rmsrq2xczpiri4-xf86-video-fbdev-0.5.1.drv.

• fbdev.c:274:16: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    274 |         device = xf86FindOptionValue(devSection->options, "fbdev");
        |                ^
  

• fbdev.c:332:17: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    332 |             dev = xf86FindOptionValue(devSections[i]->options,"fbdev");
        |                 ^
  

• fbdev.c:438:26: warning: passing argument 3 of 'fbdevHWInit' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
    438 |                          xf86FindOptionValue(fPtr->pEnt->device->options,
        |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    439 |                                              "fbdev")))
        |                                              ~~~~~~~~