Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  Kconfig: introduce ARCH_DEFCONFIG to DEFCONFIG_LIST
  .gitignore: match ncscope.out
  scripts/ver_linux use 'gcc -dumpversion'