legal-info: fail trying to copy a non-existent license file

If a package's _LICENSE_FILES contains the name of a non-existent file,
the make process would continue and return true, unless the
non-existent file is the last listed.

Fix this wrong beaviour by failing with an error when any of the listed
files is missing.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
neon: fix license files

GPL license is under test/, not src/.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
busybox 1.21.0: update mdev patch and add ntfs volume patch

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
linux: CONFIG_KERNEL_LZO option requires host-lzop

When the LZO compression mode is chosen the linux kernel requires
lzop host utility at build time.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
cairo: fix build when toolchain has no thread support

Fixes the build failure visible at
http://autobuild.buildroot.net/results/d49/d491de5a774592929a59f3bfd0b1fd8cbc089ac0

Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Merge remote-tracking branch 'upstream/master'