Add support for building Insight instead of gdb (only for the cross-gdb).

/trunk/scripts/build/debug/300-gdb.sh | 62 55 7 0 ++++++++++++++++++++++++++++++++++++-----
/trunk/config/debug/gdb.in | 13 13 0 0 +++++++++
2 files changed, 68 insertions(+), 7 deletions(-)

 # x86 specific options

 config ARCH_x86

     select ARCH_SUPPORT_ARCH

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The x86 architecture, as defined by:

         http://www.intel.com/