[Buildroot] [PATCH] linux-zigbee: fix build with gcc 7

[Peter Korsgaard]

>>>>> "Baruch" == Baruch Siach <baruch at tkos.co.il> writes:

 > Disable -Werror to avoid the fatal result of new gcc 7 format string warnings.
 > Fixes:
 > http://autobuild.buildroot.net/results/29c/29c72bc38042305310576be945c721b2fad95894/
 > http://autobuild.buildroot.net/results/a7d/a7d38d72834b94291eaff159da277b11e2f9d63a/
 > http://autobuild.buildroot.net/results/cfe/cfed5176075f0cb9e2f56ebef10f5d6c352baf10/

 > Signed-off-by: Baruch Siach <baruch at tkos.co.il>

Committed to 2017.02.x and 2017.05.x, thanks.

-- 
Bye, Peter Korsgaard