When building for avr32, the build fails as follows.
cc1: error: unrecognized command line option "-Wno-packed-bitfield-compat"
An example of an autobuild failure arising from this is the following.
http://autobuild.buildroot.net/results/92e/92e472004812a3616f62d766a9ea07a997a66e89/
Clearly, not all toolchains provide a gcc that understands
the -Wno-packed-bitfield-compat flag; remove usage of this flag.
Signed-off-by: Simon Dawson <spdawson@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
