src-release.sh (SIM_SUPPORT_DIRS): Add libsframe, libctf/swap.h and gnulib

Without this, a simulator build breaks when building from a tarball
made by "./src-release.sh -b sim", when building e.g. bfd and
libsframe.  See also previous similar commits for GDB_SUPPORT_DIRS.

The libctf library does not needed to be built, but building
libsframe requires libctf/swap.h, with no dependencies on built or
configured contents.  Do as for the single gdb files and include
explicitly only that file.
1 file changed