package/elfutils: disable for avr32

Disable elfutils for avr32, because:
  - elfutils uses canonicalize_file_name, which came after uClibc-0.9.31.
  - avr32 uses a toolchain with uClibc-0.9.31

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
lxc: needs setns system call, disable on nios2

Fixes http://autobuild.buildroot.net/results/f59/f592a011321429426be81bd1ecf664ad9a2c0161/

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
trivial: update buildroot e-mail address to buildroot@buildroot.org

As the e-mail address buildroot@buildroot.org is now enabled, update the
e-mail addresses in the source tree from @uclibc.org and @busybox.net to our
own proper domain.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Merge remote-tracking branch 'mirror/master'