package/gpsd: disable profiling support on ARC

With the currently used ARC glibc version the profiling build fails with
linking error to __mcount. The ARC glibc version arc-2018.03-eng007+
fixes this, therefore when glibc is bumped, this restriction can be
removed.

Fixes:
    http://autobuild.buildroot.net/results/88870f5bf4aff557d8eac4e1cc5d3e397e607af0/



Signed-off-by: Zoltan Gyarmati <mr.zoltan.gyarmati@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>