The gpsd package is disabled due to an internal compiler error for the microblaze architecture. The compiler issues should be fixed but for now it is just disabled.
The following commit disabled it: http://git.buildroot.net/buildroot/commit/?id=d517415bcda380336f4a27bf248cef4d81791c9e
Fixed by http://git.buildroot.net/buildroot/commit/?id=31a0e3fa624fd1b1439fb76ad2ba724e23ec97eb.