Push the calculation of the tuple's kernel part down to kernel's build scripts:
- update the kernel script's API with the function CT_DiKernelTupleValues
- update doc accordingly (also with the architecture change, missing in the previous commit)
- small clean-up in the main script, remove useless test

/trunk/scripts/build/kernel/bare-metal.sh | 5 5 0 0 +++++
/trunk/scripts/build/kernel/linux.sh | 5 5 0 0 +++++
/trunk/scripts/crosstool.sh | 31 13 18 0 +++++++++++++------------------
/trunk/scripts/functions | 15 8 7 0 ++++++++-------
/trunk/docs/overview.txt | 13 9 4 0 +++++++++----
5 files changed, 40 insertions(+), 29 deletions(-)

 source config/global.in

 source config/target.in

 source config/toolchain.in

 source config/kernel.in

 source config/gmp_mpfr.in

 source config/binutils.in

 source config/cc.in

 source config/libc.in

 source config/tools.in

 source config/debug.in