Correctly handle the minimum supported kernel version in glibc.
Should be propagated to eglibc as well...

/trunk/scripts/build/libc/glibc.sh | 78 39 39 0 +++++++++++++++++++++++++++++++-------------------------------
1 file changed, 39 insertions(+), 39 deletions(-)

 # Compute x86_64-specific values

 CT_DoArchValues() {

     # The architecture part of the tuple:

     CT_TARGET_ARCH="${CT_ARCH}"

 }