gentree: strip useless defconfig files

If a defconfig file has symbols that can't be satisfied
with the given copy-list file, then there's no point in
shipping it, so just copy selectively the ones needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
1 file changed