If fortran is not built, soft links to gfortran and g77 are created
even though the fortran compiler doesn't exist...
[YOCTO #4023]
(From OE-Core rev: c5c135bc5e71a6f9b14f249358bf5d217050ee55)
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>