Many testsuite failures on x86_64 due recent "fix" about f16cintrin.h header

[Kai Tietz]

Hi,

In ChangeLog is mentioned a change to config/config.gcc, which doesn't
exist.  I assume the change is meant for config.gcc within gcc/
folder, but also for this file no change was applied.  By this
f16cintrin.h header isn't installed at all.

Cuprit patch is:

2011-11-05  Quentin Neill  <quentin.ne...@amd.com>

        Piledriver f16cintrin.h fix.
        * config/i386/f16cintrin.h: Contents moved from immintrin.h.
        * config/config.gcc: Add f16cintrin.h.

Regards,
Kai